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From: emil_at_[hidden]
Date: 2008-06-12 04:20:50

Author: emildotchevski
Date: 2008-06-12 04:20:48 EDT (Thu, 12 Jun 2008)
New Revision: 46344
URL: http://svn.boost.org/trac/boost/changeset/46344

Log:
Documentation source file format changed
Text files modified:
trunk/libs/exception/doc/source/boost-exception.reno | 5459 +++++++++++++++++++--------------------
1 files changed, 2728 insertions(+), 2731 deletions(-)

Modified: trunk/libs/exception/doc/source/boost-exception.reno
==============================================================================
--- trunk/libs/exception/doc/source/boost-exception.reno (original)
+++ trunk/libs/exception/doc/source/boost-exception.reno 2008-06-12 04:20:48 EDT (Thu, 12 Jun 2008)
@@ -23,9 +23,6 @@
 <match>
 <string>.*\.(cpp|hpp|h)$</string>
 </match>
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@@ -61,28 +58,32 @@
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 <empty>0</empty>
- <string>../../example/enable_error_info.cpp</string>
+ <string>../../../../boost/exception_ptr.hpp</string>
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 <title>
- <string>Tutorial: Integrating Boost Exception in Existing Exception Class Hierarchies</string>
+ <string>copy_exception</string>
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+ <string></string>
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@@ -107,27 +108,27 @@
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 <title>
- <string>Tutorial: Logging of boost::exception Objects</string>
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+ <string>exception_cloning_hpp</string>
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@@ -135,7 +136,7 @@
 <container>
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!!!See also:

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+ <string>!!!boost/exception_ptr.hpp

This header file contains the following definitions/declarations:

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@@ -151,32 +152,28 @@
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@@ -184,7 +181,7 @@
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!!!See also:

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+ <string>!!!boost/exception.hpp

This header file includes all other header files of Boost Exception:

(:pagelist tags="header":)
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@@ -200,32 +197,21 @@
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 <title>
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+ <string>Tutorial: Transporting of Exceptions between Threads</string>
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 <title>
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+ <string>rethrow_exception</string>
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@@ -425,7 +407,7 @@
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This header file includes all other header files of Boost Exception:

(:pagelist tags="header":)
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+ <string>(:include include:)

!!!See also:

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!!!See also:

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+ <string>(:include include:)

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This header file contains the following definitions/declarations:

(:pagelist link="backlink" layer="synopsis":)
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The purpose of Boost Exception is to ease the design of exception class hierarchies and to help write exception handling and error reporting code.

It supports transporting of arbitrary data to the catch site, which is otherwise tricky due to the no-throw requirements (15.5.1) for exception classes. Data can be added to any exception object, either directly in the throw-expression (15.1), or at a later time as the exception object propagates up the call stack.

The ability to add data to exception objects after they have been passed to @@throw@@ is important, because often some of the information needed to handle an exception is unavailable in the context where the failure is detected. 

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- <shared_ptr>
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- </title>
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- <string>cloning</string>
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 <variant>2</variant>
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- <expired>0</expired>
- <shared_ptr>
- <id>19</id>
- <type>
- <string>reno_context</string>
- </type>
- <object>
+ <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
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The purpose of Boost Exception is to ease the design of exception class hierarchies and to help write exception handling and error reporting code.

It supports transporting of arbitrary data to the catch site, which is otherwise tricky due to the no-throw requirements (15.5.1) for exception classes. Data can be added to any exception object, either directly in the throw-expression (15.1), or at a later time as the exception object propagates up the call stack.

The ability to add data to exception objects after they have been passed to @@throw@@ is important, because often some of the information needed to handle an exception is unavailable in the context where the failure is detected. 

Boost Exception also supports (:link </string>
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!!!!Note:

Boost Exception was accepted as a Boost library on November 7 2007, however it has not yet been part of an official Boost release. Current version can be downloaded from (:link http://svn.boost.org/svn/boost/trunk | Boost SVN:).

!!Contents

#Tutorial
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 }@]

(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)

!!Transporting of Arbitrary Data to the Catch Site

(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-11</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-35</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-18</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
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+ <shared_ptr>
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+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-39</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
!!Transporting of Exceptions between Threads

(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-40</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-30</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-16</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-5</id>
+ </shared_ptr>
+ </weak_ptr>
 <variant>2</variant>
- <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
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- <shared_ptr>
- <id>36</id>
- <type>
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- </stream_hook_path>
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- <file>
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- </path>
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- </hook>
- <title>
- <string>exception::exception</string>
- </title>
- <file_name>
- <string>exception_constructors</string>
- </file_name>
- </object>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>1</size>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-10</id>
+ </shared_ptr>
+ </weak_ptr>
 <variant>2</variant>
- <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
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- <type>
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- </hook>
- <file>
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- <string>../../../../boost/exception/exception.hpp</string>
- <type>0</type>
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- </hook>
- <title>
- <string>exception::~exception</string>
- </title>
- <file_name>
- <string>exception_destructor</string>
- </file_name>
- </object>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>1</size>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-32</id>
+ </shared_ptr>
+ </weak_ptr>
 <variant>2</variant>
- <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
+ <string>:)

!!Throwing Exceptions

(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-14</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>38</id>
- <type>
- <string>reno_context</string>
- </type>
- <object>
- <hook>
- <hook>
- <stream_hook_path>
- <container>
- <size>1</size>
- E444EE9697EEADFDE0767E1D0242FC0E70D98E61FB1F0FFA099648DE509B82F3
- <weak>94503238</weak>
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- <string>../../example/info_tuple.cpp</string>
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- </path>
- </file>
- </hook>
- <title>
- <string>Tutorial: Adding Grouped Data to Exceptions</string>
- </title>
- <file_name>
- <string>grouping_data</string>
- </file_name>
- </object>
+ <id>-38</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>1</size>
 <variant>2</variant>
- <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)</string>
+ <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>39</id>
- <type>
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- </type>
- <object>
- <hook>
- <hook>
- <stream_hook_path>
- <container>
- <size>1</size>
- FC684D0DD5A9732B4130F2AB3DB6E0491D0F523E14B7FB738B2019EA2C7F8717
- <weak>2229778754</weak>
- <size>631</size>
- <position>319</position>
- </container>
- </stream_hook_path>
- </hook>
- <file>
- <path>
- <empty>0</empty>
- <string>../../example/cloning_2.cpp</string>
- <type>0</type>
- <base>0</base>
- </path>
- </file>
- </hook>
- <title>
- <string>Tutorial: Cloning and Re-throwing an Exception</string>
- </title>
- <file_name>
- <string>cloning_and_rethrowing</string>
- </file_name>
- </object>
+ <id>-39</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>1</size>
 <variant>2</variant>
- <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)</string>
+ <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>40</id>
- <type>
- <string>reno_context</string>
- </type>
- <object>
- <hook>
- <hook>
- <stream_hook_path>
- <container>
- <size>1</size>
- F4C951B28F7DE500973AA3DFAA99F2BADA6EDAFA2B406C30BEF3B7FBE6FD57D7
- <weak>2263754923</weak>
- <size>982</size>
- <position>306</position>
- </container>
- </stream_hook_path>
- </hook>
- <file>
- <path>
- <empty>0</empty>
- <string>../../example/error_info_2.cpp</string>
- <type>0</type>
- <base>0</base>
- </path>
- </file>
- </hook>
- <title>
- <string>Tutorial: Adding of Arbitrary Data to Active Exception Objects</string>
- </title>
- <file_name>
- <string>adding_data_later</string>
- </file_name>
- </object>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>1</size>
 <variant>2</variant>
- <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)</string>
+ <string>(:include include:)

!!!See also:

(:pagelist link="backlink" except_tags="noalso":)
</string>
 </container>
 </pair>
 </sorted>
@@ -2291,17 +2288,6 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
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- <weak_ptr>
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- <shared_ptr>
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- </shared_ptr>
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- <container>
 <size>3</size>
 <variant>2</variant>
 <string>[@#include <</string>
@@ -2317,7 +2303,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2328,22 +2314,22 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-12</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>[@#include <(:link </string>
- <variant>1</variant>
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- <expired>0</expired>
- <shared_ptr>
- <id>-27</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)></string>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-13</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -2354,15 +2340,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>[@#include <</string>
- <variant>1</variant>
- <weak_ptr>
- <expired>1</expired>
- </weak_ptr>
- <variant>2</variant>
- <string>>@]</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -2384,7 +2362,15 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>[@#include <</string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>1</expired>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>>@]</string>
 </container>
 </pair>
 <pair>
@@ -2435,7 +2421,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2446,7 +2432,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-22</id>
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 </weak_ptr>
 <container>
@@ -2457,7 +2443,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2468,7 +2454,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-24</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2479,26 +2465,18 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>[@#include <</string>
- <variant>1</variant>
- <weak_ptr>
- <expired>1</expired>
- </weak_ptr>
- <variant>2</variant>
- <string>>@]</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2509,7 +2487,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-27</id>
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 </weak_ptr>
 <container>
@@ -2520,7 +2498,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2531,7 +2509,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-29</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2542,18 +2520,29 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>[@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-34</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)></string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2656,7 +2645,15 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>[@#include <</string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>1</expired>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>>@]</string>
 </container>
 </pair>
 </sorted>
@@ -2853,7 +2850,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -2864,7 +2861,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-22</id>
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 <container>
@@ -2875,7 +2872,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-23</id>
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 </weak_ptr>
 <container>
@@ -2886,7 +2883,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-24</id>
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 <container>
@@ -2897,7 +2894,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-25</id>
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 </weak_ptr>
 <container>
@@ -2908,7 +2905,7 @@
 <weak_ptr>
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 <shared_ptr>
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+ <id>-26</id>
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 <container>
@@ -2919,7 +2916,7 @@
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+ <id>-27</id>
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 <container>
@@ -2930,7 +2927,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
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+ <id>-28</id>
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 </weak_ptr>
 <container>
@@ -2941,7 +2938,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-29</id>
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 </weak_ptr>
 <container>
@@ -2952,7 +2949,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-30</id>
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 </weak_ptr>
 <container>
@@ -2963,7 +2960,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-31</id>
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 <container>
@@ -3263,7 +3260,7 @@
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 <shared_ptr>
- <id>-29</id>
+ <id>-21</id>
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 </weak_ptr>
 <container>
@@ -3274,7 +3271,7 @@
 <weak_ptr>
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 <shared_ptr>
- <id>-30</id>
+ <id>-22</id>
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 <container>
@@ -3285,7 +3282,7 @@
 <weak_ptr>
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 <shared_ptr>
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+ <id>-23</id>
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 </weak_ptr>
 <container>
@@ -3296,7 +3293,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
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+ <id>-24</id>
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 <container>
@@ -3307,7 +3304,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
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+ <id>-25</id>
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@@ -3318,7 +3315,7 @@
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+ <id>-26</id>
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 <container>
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+ <id>-27</id>
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 <container>
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+ <id>-28</id>
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 <container>
@@ -3351,7 +3348,7 @@
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+ <id>-29</id>
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@@ -3362,7 +3359,7 @@
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+ <id>-30</id>
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+ <id>-31</id>
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 (:link </string>
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- <variant>2</variant>
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 {
 public:

(:include </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-35</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string> decl:)

 protected:

(:include </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-36</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string> decl:)
(:include </string>
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- <weak_ptr>
- <expired>0</expired>
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- <id>-37</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string> decl:)

 private:

 ---unspecified---
 };@]
</string>
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- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
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- </shared_ptr>
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- <container>
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- <variant>2</variant>
- <string>[@ template <class E, class Tag1, class T1>
 E const & operator<<( E const & x, (:link </string>
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- <weak_ptr>
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- <string>:)<Tag1,T1> const & v );

 template <class E, class Tag1, class T1, ..., class TagN, class TN>
 E const & operator<<( E const & x,
 (:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)<
 (:link </string>
- <variant>1</variant>
- <weak_ptr>
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- <string>:)<Tag1,T1>,
 ...,
 (:link </string>
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- <weak_ptr>
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- <shared_ptr>
- <id>-21</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)<TagN,TN> > const & v );@]
</string>
+ <size>0</size>
 </container>
 </pair>
+ </sorted>
+ </object>
+ </shared_ptr>
+ </pair>
+ <pair>
+ <string>decl</string>
+ <shared_ptr>
+ <id>44</id>
+ <type>
+ <string>reno_layer</string>
+ </type>
+ <object>
+ <sorted>
+ <size>36</size>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-5</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
+ <size>5</size>
 <variant>2</variant>
- <string>[@ template <class ErrorInfo,class E>
 (:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)<typename ErrorInfo::value_type const> (:link </string>
+ <string>[@ template <class T>
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)( E const & x );</string>
+ <string>:) (:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-5</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)( T const & e );@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-10</id>
+ <id>-6</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>[@ template <class T>
 ---unspecified--- (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-10</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)( T const & x );@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-11</id>
+ <id>-7</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>5</size>
- <variant>2</variant>
- <string>[@ void (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-11</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)( (:link </string>
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- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-23</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:) const & ep );</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-8</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -3694,93 +3558,71 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-9</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>[@ template <class T>
 ---unspecified--- (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-13</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)( T const & e );</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-10</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>5</size>
 <variant>2</variant>
- <string>[@ (:link </string>
+ <string>[@ void (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-10</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) (:link </string>
+ <string>:)( (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)();@]
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-15</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
+ <string>:) const & ep );</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-16</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>3</size>
 <variant>2</variant>
- <string>[@ class
 (:link </string>
+ <string>[@ template <class Tag,class T>
 class
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-16</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:):
 public std::exception
 public boost::exception
 {
 ---unspecified---
 };@]
</string>
+ <string>:)
 {
 public:

 typedef T value_type;

 error_info( value_type const & );

 private:

 ---unspecified---
 };@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-17</id>
+ <id>-12</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -3791,7 +3633,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-18</id>
+ <id>-13</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -3802,7 +3644,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -3813,7 +3655,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -3822,7 +3664,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -3833,7 +3675,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-20</id>
+ <id>-15</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -3844,153 +3686,166 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>5</size>
+ <variant>2</variant>
+ <string>[@ (:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-40</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:) (:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-16</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)();@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-17</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>[@ template <class T>
 ---unspecified--- (:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-17</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)( T const & x );@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-18</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>3</size>
 <variant>2</variant>
- <string>[@ template <class Tag,class T>
 class
 (:link </string>
+ <string>[@ template <class ErrorInfo,class E>
 (:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)<typename ErrorInfo::value_type const> (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-18</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)
 {
 public:

 typedef T value_type;

 error_info( value_type const & );

 private:

 ---unspecified---
 };@]
</string>
+ <string>:)( E const & x );</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>9</size>
+ <size>3</size>
 <variant>2</variant>
- <string>[@ typedef (:link </string>
+ <string>[@ virtual char const * (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_throw_function,char const *> throw_function;
 typedef (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-21</id>
- </shared_ptr>
- </weak_ptr>
+ <string>:::)() const throw();@]
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-20</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>7</size>
 <variant>2</variant>
- <string>:)<struct tag_throw_file,char const *> throw_file;
 typedef (:link </string>
+ <string>[@ (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-20</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_throw_line,int> throw_line;

 #define (:link </string>
+ <string>:::)();
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-20</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)\
 ::boost::throw_function(BOOST_CURRENT_FUNCTION) <<\
 ::boost::throw_file(__FILE__) <<\
 ::boost::throw_line((int)__LINE__)@]
</string>
- </container>
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- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-23</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>3</size>
- <variant>2</variant>
- <string>[@ typedef ---unspecified--- (:link </string>
+ <string>:::)( (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:);@]
</string>
+ <string>:) const & x );@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>5</size>
- <variant>2</variant>
- <string>[@ template <class T>
 (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-23</id>
- </shared_ptr>
- </weak_ptr>
+ <size>3</size>
 <variant>2</variant>
- <string>:) (:link </string>
+ <string>[@ (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)( T const & e );@]
</string>
+ <string>:::)();@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-22</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4001,7 +3856,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4012,7 +3867,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-24</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4023,7 +3878,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4034,7 +3889,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4045,7 +3900,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-32</id>
+ <id>-27</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4056,7 +3911,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-33</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4067,7 +3922,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-34</id>
+ <id>-29</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4078,102 +3933,62 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-35</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>3</size>
 <variant>2</variant>
- <string>[@ virtual char const * (:link </string>
+ <string>[@ template <class T>
 ---unspecified--- (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-35</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:::)() const throw();@]
</string>
+ <string>:)( T const & e );</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-36</id>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>7</size>
- <variant>2</variant>
- <string>[@ (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-36</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:::)();
 (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-36</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:::)( (:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-7</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:) const & x );@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-37</id>
+ <id>-32</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>3</size>
 <variant>2</variant>
- <string>[@ (:link </string>
+ <string>[@ class
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-37</id>
+ <id>-32</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:::)();@]
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-38</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
+ <string>:):
 public std::exception
 public boost::exception
 {
 ---unspecified---
 };@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-39</id>
+ <id>-33</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4184,92 +3999,91 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-40</id>
+ <id>-34</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>0</size>
 </container>
 </pair>
- </sorted>
- </object>
- </shared_ptr>
- </pair>
- <pair>
- <string>include</string>
- <shared_ptr>
- <id>45</id>
- <type>
- <string>reno_layer</string>
- </type>
- <object>
- <sorted>
- <size>36</size>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-5</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>27</size>
+ <size>7</size>
 <variant>2</variant>
- <string>!!Integrating Boost Exception in Existing Exception Class Hierarchies

Some exception hierarchies can not be modified to make @@boost::(:link </string>
+ <string>[@ template <class E, class Tag1, class T1>
 E const & operator<<( E const & x, (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ a base type. For this case, the @@(:link </string>
+ <string>:)<Tag1,T1> const & v );

 template <class E, class Tag1, class T1, ..., class TagN, class TN>
 E const & operator<<( E const & x,
 (:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)<
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-10</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ function template can be used to make exception objects derive from @@boost::(:link </string>
+ <string>:)<Tag1,T1>,
 ...,
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ anyway. Here is an example:

[@#include <(:link </string>
+ <string>:)<TagN,TN> > const & v );@]
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>9</size>
+ <variant>2</variant>
+ <string>[@ class
 (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <stdexcept>

typedef boost::(:link </string>
+ <string>:)
 {
 public:

(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_std_range_min,size_t> std_range_min;
typedef boost::(:link </string>
+ <string> decl:)

 protected:

(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-20</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_std_range_max,size_t> std_range_max;
typedef boost::(:link </string>
+ <string> decl:)
(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
@@ -4278,61 +4092,136 @@
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_std_range_index,size_t> std_range_index;

template <class T>
class
my_container
 {
 public:

 size_t size() const;

 T const &
 operator[]( size_t i ) const
 {
 if( i > size() )
 throw boost::(:link </string>
+ <string> decl:)

 private:

 ---unspecified---
 };@]
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-37</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-38</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-39</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>9</size>
+ <variant>2</variant>
+ <string>[@ typedef (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-10</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)(std::range_error("Index out of range")) <<
 std_range_min(0) <<
 std_range_max(size()) <<
 std_range_index(i);
 //....
 }
 };
@]

@@(:link </string>
+ <string>:)<struct tag_throw_function,char const *> throw_function;
 typedef (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-10</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|Enable_error_info:)<T>@@ returns an object of ''unspecified type'' which is guaranteed to derive from both @@boost::(:link </string>
+ <string>:)<struct tag_throw_file,char const *> throw_file;
 typedef (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ and @@T@@. This makes it possible to use @@(:link </string>
+ <string>:)<struct tag_throw_line,int> throw_line;

 #define (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-39</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@ to store additional information in the exception object. The exception can be intercepted as @@T &@@, therefore existing exception handling will not break. It can also be intercepted as @@boost::(:link </string>
+ <string>:)\
 ::boost::throw_function(BOOST_CURRENT_FUNCTION) <<\
 ::boost::throw_file(__FILE__) <<\
 ::boost::throw_line((int)__LINE__)@]
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-40</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>3</size>
+ <variant>2</variant>
+ <string>[@ typedef ---unspecified--- (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) &@@, so that (:link </string>
+ <string>:);@]
</string>
+ </container>
+ </pair>
+ </sorted>
+ </object>
+ </shared_ptr>
+ </pair>
+ <pair>
+ <string>include</string>
+ <shared_ptr>
+ <id>45</id>
+ <type>
+ <string>reno_layer</string>
+ </type>
+ <object>
+ <sorted>
+ <size>36</size>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-5</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>3</size>
+ <variant>2</variant>
+ <string>!!!copy_exception()

(:include synopsis:)

!!!!Effects:

As if @@try { throw e; } catch( ... ) { return </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-20</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|more information can be added to the exception at a later time:).
</string>
+ <string>(); }@@
</string>
 </container>
 </pair>
 <pair>
@@ -4343,489 +4232,443 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>21</size>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-7</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-8</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>11</size>
 <variant>2</variant>
- <string>!!Logging of boost::exception Objects

Class @@boost::(:link </string>
+ <string>!!Transporting of Exceptions between Threads



Boost Exception supports transporting of exception objects between threads through cloning. This system is similar to (:link http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html|N2179:), but because Boost Exception can not rely on language support, the use of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ provides a virtual member function @@(:link </string>
+ <string>:)()@@ at the time of the throw is required in order to use cloning.

!!!!Note:

All exceptions emitted by the familiar function @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-35</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:::)()@@, with a signature identical to the familiar @@std::exception::what()@@ function. The default implementation returns a string value that is not presentable as a friendly user message, but because it is generated automatically, it is useful for debugging or logging purposes. Here is an example:

[@#include <(:link </string>
+ <string>:)()@@ are guaranteed to derive from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <iostream>

void f(); //throws unknown types that derive from boost::(:link </string>
+ <string>:)@@ and to support cloning.

(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:).

void
g()
 {
 try
 {
 f();
 }
 catch(
 boost::(:link </string>
+ <string>:)


(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-12</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) & e )
 {
 std::cerr << e.(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-35</id>
- </shared_ptr>
- </weak_ptr>
+ <string>:)
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-9</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>27</size>
 <variant>2</variant>
- <string>:::)();
 }
 }@]

The @@(:link </string>
+ <string>!!Integrating Boost Exception in Existing Exception Class Hierarchies

Some exception hierarchies can not be modified to make @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-35</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:::)()@@ member function iterates over all data objects stored in the @@boost::(:link </string>
+ <string>:)@@ a base type. For this case, the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-17</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ through @@(:link </string>
+ <string>:)()@@ function template can be used to make exception objects derive from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@. The returned string is constructed by converting each data object to string and then concatenating these strings together.

When the @@(:link </string>
+ <string>:)@@ anyway. Here is an example:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-7</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<Tag,T>@@ template is instantiated, the system attempts overload resolution for an unqualified call to @@to_string(x)@@, where @@x@@ is of type @@T@@. If this is successful, the @@to_string()@@ overload is used to convert objects of type @@T@@ to string.

Otherwise, the system attempts overload resolution for @@s << x@@, where @@s@@ is a @@std::ostringstream@@ and @@x@@ is of type @@T@@. If this is successful, the @@operator<<@@ overload is used to convert objects of type @@T@@ to string.

Otherwise the system is unable to convert objects of type @@T@@ to string, and an unspecified stub string value is used without issuing a compile error.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-7</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>13</size>
- <variant>2</variant>
- <string>!!exception



(:include synopsis:)

Class @@boost::(:link </string>
+ <string>:)>
#include <stdexcept>

typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ is designed to be used as a universal base for user-defined exception types.

An object of any type deriving from @@boost::(:link </string>
+ <string>:)<struct tag_std_range_min,size_t> std_range_min;
typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ can store data of arbitrary types, using the @@</string>
+ <string>:)<struct tag_std_range_max,size_t> std_range_max;
typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>@@ wrapper and @@(:link </string>
+ <string>:)<struct tag_std_range_index,size_t> std_range_index;

template <class T>
class
my_container
 {
 public:

 size_t size() const;

 T const &
 operator[]( size_t i ) const
 {
 if( i > size() )
 throw boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-17</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@.

To retrieve data from a @@boost::(:link </string>
+ <string>:)(std::range_error("Index out of range")) <<
 std_range_min(0) <<
 std_range_max(size()) <<
 std_range_index(i);
 //....
 }
 };
@]

@@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-17</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object, use the @@(:link </string>
+ <string>|Enable_error_info:)<T>@@ returns an object of ''unspecified type'' which is guaranteed to derive from both @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ function template.

(:include members:)
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-8</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>7</size>
- <variant>2</variant>
- <string>!!!operator<<()

(:include synopsis:)

!!!!Requirements:

@@E@@ must be @@boost::(:link </string>
+ <string>:)@@ and @@T@@. This makes it possible to use @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@, or a type that derives (indirectly) from @@boost::(:link </string>
+ <string>|operator<<:)()@@ to store additional information in the exception object. The exception can be intercepted as @@T &@@, therefore existing exception handling will not break. It can also be intercepted as @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@.

!!!!Effects:

* The first overload stores a copy of @@v@@ into @@x@@. If @@x@@ already contains data of type @@(:link </string>
+ <string>:) &@@, so that (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-38</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<Tag1,T1>@@, that data is overwritten.
* The @@boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)@@ overload is equivalent to @@x << v.(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#accessing_elements|get:)<0>() << ... << v.(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#accessing_elements|get:)<N>()@@.

!!!!Returns:

@@x@@.

(:include throws:)
</string>
+ <string>|more information can be added to the exception at a later time:).
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-10</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>7</size>
+ <size>1</size>
 <variant>2</variant>
- <string>!!!get_error_info()

(:include synopsis:)

!!!!Requirements:

The type of the @@x@@ object must derive from @@boost::(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-7</id>
- </shared_ptr>
- </weak_ptr>
+ <string>!!!rethrow_exception()

(:include synopsis:)

!!!!Precondition:

@@ep@@ shall not be null.

!!!!Throws:



The exception to which @@ep@@ refers.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-11</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>21</size>
 <variant>2</variant>
- <string>:)@@; @@ErrorInfo@@ must be an instance of the @@(:link </string>
+ <string>!!!error_info

(:include synopsis:)

!!!!Requirements:

@@T@@ must have accessible copy constructor and must not be a reference.

!!!!Description:

This class template is used to associate a @@Tag@@ type with a value type @@T@@. Objects of type @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ template.

!!!!Returns:

If @@x@@ does not store an object of type @@ErrorInfo@@, returns an empty @@(:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)@@; otherwise returns pointer to the stored value. Use @@(:link </string>
+ <string>:)<Tag,T>@@ can be passed to @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@ to store values in exception objects.

!!!!Throws:

Nothing.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-10</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>7</size>
- <variant>2</variant>
- <string>!!!enable_error_info()

(:include synopsis:)

!!!!Requirements:

@@T@@ must be a user-defined type with accessible no-throw copy constructor.

!!!!Returns:

An object of unspecified type with no-throw copy semantics, which derives publicly from both @@T@@, and class @@boost::(:link </string>
+ <string>|operator<<:)()@@ to be stored in objects of type @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@. The @@T@@ sub-object is initialized from @@x@@ by the @@T@@ copy constructor. If @@T@@ already derives from @@boost::(:link </string>
+ <string>:)@@.

!!!!Note:

The header @@<(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@, then the type of the returned object does not derive @@boost::(:link </string>
+ <string>:)>@@ provides a declaration of the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@.

!!!!Throws:

Nothing.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-11</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>1</size>
- <variant>2</variant>
- <string>!!!rethrow_exception()

(:include synopsis:)

!!!!Precondition:

@@ep@@ shall not be null.

!!!!Throws:



The exception to which @@ep@@ refers.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-12</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-13</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>17</size>
- <variant>2</variant>
- <string>!!!enable_current_exception()

(:include synopsis:)

!!!!Requirements:

@@T@@ must have an accessible no-throw copy constructor

!!!!Returns:

An object of ''unspecified'' type which derives publicly from @@T@@. That is, the returned object can be intercepted by a @@catch(T &)@@.

!!!!Description:



This function is designed to be used directly in a throw-expression to enable the cloning support in Boost Exception. For example:

[@class
my_exception:
 public std::exception
 {
 };

....
throw boost::(:link </string>
+ <string>:)@@ template, which is sufficient for the purpose of @@typedef@@ing an instance for specific @@Tag@@ and @@T@@, like this:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)(my_exception());@]

Unless @@(:link </string>
+ <string>:)>

typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ is called at the time an exception object is used in a throw-expression, an attempt to copy it using @@(:link </string>
+ <string>:)<struct tag_errno,int> errno_info;@]

Of course, to actually add an @@errno_info@@ object to exceptions using @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ may return an @@(:link </string>
+ <string>|operator<<:)()@@, or to retrieve it using @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-18</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ which refers to an instance of @@(:link </string>
+ <string>:)()@@, you must first @@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-16</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@. See @@(:link </string>
+ <string>:)>@@.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-12</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>39</size>
+ <variant>2</variant>
+ <string>!!!Cloning and Re-throwing an Exception

When you catch a @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ for details.

!!!!Note:

Instead of using the @@throw@@ keyword directly, it is preferable to call @@boost::(:link </string>
+ <string>:)@@, you can call @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@. This is guaranteed to throw an exception that derives from @@boost::(:link </string>
+ <string>:)()@@ to get an @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ and supports cloning.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-14</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>29</size>
- <variant>2</variant>
- <string>!!!current_exception()

(:include synopsis:)

!!!!Requirements:

The @@(:link </string>
+ <string>:)@@ object:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-6</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ function must not be called outside of a @@catch@@ block.

!!!!Returns:

* An @@(:link </string>
+ <string>:)>
#include <boost/thread.hpp>
#include <boost/bind.hpp>

void do_work(); //throws cloning-enabled boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ that refers to the currently handled exception or a copy of the currently handled exception.
* If the function needs to allocate memory and the attempt fails, it returns an @@(:link </string>
+ <string>:)s

void
worker_thread( boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ that refers to an instance of @@std::bad_alloc@@.

!!!!Notes:

* It is unspecified whether the return values of two successive calls to @@(:link </string>
+ <string>:) & error )
 {
 try
 {
 do_work();
 error = boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ refer to the same exception object.
* Correct implementation of @@(:link </string>
+ <string>:)();
 }
 catch(
 ... )
 {
 error = boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ may require compiler support, unless @@(:link </string>
+ <string>:)();
 }
 }@]

In the above example, note that @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ is used at the time the currently handled exception object was passed to @@throw@@. If @@(:link </string>
+ <string>:)()@@ captures the original type of the exception object. The exception can be thrown again using the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-10</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ is not used, and if the compiler does not provide the necessary support, then @@(:link </string>
+ <string>:)()@@ function:

[@// ...continued

void
work()
 {
 boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ may return an @@(:link </string>
+ <string>:) error;
 boost::(:link http://www.boost.org/doc/html/boost/thread.html|thread:) t( boost::(:link http://www.boost.org/libs/bind/bind.html|bind:)(worker_thread,boost::(:link http://www.boost.org/doc/html/ref.html|ref:)(error)) );
 t.(:link http://www.boost.org/doc/html/boost/thread.html|join:)();
 if( error )
 boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-10</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ that refers to an instance of @@(:link </string>
+ <string>:)(error);
 }@]

@@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
@@ -4834,161 +4677,135 @@
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@. In this case, if the original exception object derives from @@boost::(:link </string>
+ <string>:)()@@ could fail to copy the original exception object in the following cases:

* if there is not enough memory, in which case the returned @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@, then the @@boost::(:link </string>
+ <string>:)@@ points to an instance of @@std::bad_alloc@@, or
* if @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ sub-object of the @@(:link </string>
+ <string>:)()@@ was not used in the throw-expression passed to the original @@throw@@ statement and the current implementation does not have the necessary compiler-specific support to copy the exception automatically, in which case the returned @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-16</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object is initialized by the @@boost::(:link </string>
+ <string>:)@@ points to an instance of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-32</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ copy constructor.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-15</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-16</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>5</size>
- <variant>2</variant>
- <string>!!!unknown_exception

(:include synopsis:)

This type is used by the (:link </string>
+ <string>:)@@.



Regardless, the use of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-18</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|cloning:) support in Boost Exception. Please see @@(:link </string>
+ <string>:)()@@ and @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-10</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-17</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
+ <string>:)()@@ in the above examples is well-formed.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-18</id>
+ <id>-13</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>11</size>
+ <size>13</size>
 <variant>2</variant>
- <string>!!Transporting of Exceptions between Threads



Boost Exception supports transporting of exception objects between threads through cloning. This system is similar to (:link http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html|N2179:), but because Boost Exception can not rely on language support, the use of @@(:link </string>
+ <string>!!!Adding Grouped Data to Exceptions

The code snippet below demonstrates how @@boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)@@ can be used to bundle the name of the function that failed, together with the reported @@errno@@ so that they can be added to exception objects more conveniently together:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ at the time of the throw is required in order to use cloning.

!!!!Note:

All exceptions emitted by the familiar function @@boost::(:link </string>
+ <string>:)>
#include <boost/shared_ptr.hpp>
#include <stdio.h>
#include <string>
#include <errno.h>

typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ are guaranteed to derive from @@boost::(:link </string>
+ <string>:)<struct tag_file_name,std::string> file_name_info;
typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ and to support cloning.

(:include </string>
+ <string>:)<struct tag_function,char const *> function_info;
typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-33</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)


(:include </string>
+ <string>:)<struct tag_errno,int> errno_info;
typedef boost::tuple<function_info,errno_info> clib_failure;

class file_open_error: public boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-39</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)
</string>
+ <string>:) { };

boost::shared_ptr<FILE>
file_open( char const * name, char const * mode )
 {
 if( FILE * f=fopen(name,mode) )
 return boost::shared_ptr<FILE>(f,fclose);
 else
 throw file_open_error() <<
 file_name_info(name) <<
 clib_failure("fopen",errno);
 }@]

Note that the members of a @@boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)@@ are stored separately in exception objects; they can only be retrieved individually, using @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-18</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)()@@.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -4999,7 +4816,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -5008,7 +4825,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -5017,7 +4834,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-10</id>
+ <id>-17</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -5026,7 +4843,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-19</id>
+ <id>-14</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -5037,339 +4854,339 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-20</id>
+ <id>-15</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>11</size>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-16</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>29</size>
 <variant>2</variant>
- <string>!!Transporting of Arbitrary Data to the Catch Site

All exception types that derive from @@boost::(:link </string>
+ <string>!!!current_exception()

(:include synopsis:)

!!!!Requirements:

The @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ can be used as type-safe containers of arbitrary data objects, while complying with the no-throw requirements (15.5.1) of the ANSI C++ standard for exception classes. Data can be added to a @@boost::(:link </string>
+ <string>:)()@@ function must not be called outside of a @@catch@@ block.

!!!!Returns:

* An @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ at the time of the throw, or at a later time.

(:include </string>
+ <string>:)@@ that refers to the currently handled exception or a copy of the currently handled exception.
* If the function needs to allocate memory and the attempt fails, it returns an @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-34</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)

(:include </string>
+ <string>:)@@ that refers to an instance of @@std::bad_alloc@@.

!!!!Notes:

* It is unspecified whether the return values of two successive calls to @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-40</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)
(:include </string>
+ <string>:)()@@ refer to the same exception object.
* Correct implementation of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-38</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-29</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-30</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-21</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>21</size>
+ <string>:)()@@ may require compiler support, unless @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-30</id>
+ </shared_ptr>
+ </weak_ptr>
 <variant>2</variant>
- <string>!!!error_info

(:include synopsis:)

!!!!Requirements:

@@T@@ must have accessible copy constructor and must not be a reference.

!!!!Description:

This class template is used to associate a @@Tag@@ type with a value type @@T@@. Objects of type @@(:link </string>
+ <string>:)()@@ is used at the time the currently handled exception object was passed to @@throw@@. If @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<Tag,T>@@ can be passed to @@(:link </string>
+ <string>:)()@@ is not used, and if the compiler does not provide the necessary support, then @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@ to be stored in objects of type @@boost::(:link </string>
+ <string>:)()@@ may return an @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@.

!!!!Note:

The header @@<(:link </string>
+ <string>:)@@ that refers to an instance of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-32</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)@@. In this case, if the original exception object derives from @@boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>@@ provides a declaration of the @@(:link </string>
+ <string>:)@@, then the @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ template, which is sufficient for the purpose of @@typedef@@ing an instance for specific @@Tag@@ and @@T@@, like this:

[@#include <(:link </string>
+ <string>:)@@ sub-object of the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-32</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>

typedef boost::(:link </string>
+ <string>:)@@ object is initialized by the @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_errno,int> errno_info;@]

Of course, to actually add an @@errno_info@@ object to exceptions using @@(:link </string>
+ <string>:)@@ copy constructor.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-17</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>7</size>
+ <variant>2</variant>
+ <string>!!!enable_error_info()

(:include synopsis:)

!!!!Requirements:

@@T@@ must be a user-defined type with accessible no-throw copy constructor.

!!!!Returns:

An object of unspecified type with no-throw copy semantics, which derives publicly from both @@T@@, and class @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@, or to retrieve it using @@(:link </string>
+ <string>:)@@. The @@T@@ sub-object is initialized from @@x@@ by the @@T@@ copy constructor. If @@T@@ already derives from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@, you must first @@#include <(:link </string>
+ <string>:)@@, then the type of the returned object does not derive @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-15</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>@@.
</string>
+ <string>:)@@.

!!!!Throws:

Nothing.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-18</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>7</size>
 <variant>2</variant>
- <string>!!!BOOST_ERROR_INFO

(:include synopsis:)

This macro is designed to be used with @@(:link </string>
+ <string>!!!get_error_info()

(:include synopsis:)

!!!!Requirements:

The type of the @@x@@ object must derive from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@ when throwing a @@boost::(:link </string>
+ <string>:)@@; @@ErrorInfo@@ must be an instance of the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@, to store information about the location of the throw statement. It can be chained with other @@(:link </string>
+ <string>:)@@ template.

!!!!Returns:

If @@x@@ does not store an object of type @@ErrorInfo@@, returns an empty @@(:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)@@; otherwise returns pointer to the stored value. Use @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@s in a single throw expression.
</string>
+ <string>|operator<<:)()@@ to store values in exception objects.

!!!!Throws:

Nothing.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>15</size>
+ <size>7</size>
 <variant>2</variant>
- <string>!!!exception_ptr

(:include synopsis:)

The @@(:link </string>
+ <string>!!!exception::what()

(:include decl:)

!!!!Returns:

An string representation of all data stored in the @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ type can be used to refer to a copy of an exception object. It is Default Constructible, Copy Constructible, Assignable and Equality Comparable; @@(:link </string>
+ <string>:)@@ object by the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@'s operations do not throw.

Two instances of @@(:link </string>
+ <string>|operator<<:)()@@ function. See "(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ are equivalent and compare equal if and only if they refer to the same exception.

The default constructor of @@(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-23</id>
- </shared_ptr>
- </weak_ptr>
+ <string>:)" for details.

!!!!Throws:

Nothing.

!!!!Note:

The return value remains valid until the exception object from which it is obtained is destroyed or modified.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-20</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>7</size>
 <variant>2</variant>
- <string>:)@@ produces the null value of the type. The null value is equivalent only to itself.

!!!!Note:

@@(:link </string>
+ <string>!!!exception constructors

(:include decl:)

!!!!Effects:

* Default constructor: initializes an empty @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ objects are returned by @@(:link </string>
+ <string>:)@@ object.
* Copy constructor: initializes a @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ and @@(:link </string>
+ <string>:)@@ object which shares with @@x@@ all data added through @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@.
</string>
+ <string>|operator<<:)()@@, including data that is added at a future time.

!!!!Throws:

Nothing.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
 <size>3</size>
 <variant>2</variant>
- <string>!!!copy_exception()

(:include synopsis:)

!!!!Effects:

As if @@try { throw e; } catch( ... ) { return </string>
+ <string>!!!exception destructor

(:include decl:)

!!!!Effects:



Frees all resources associated with a @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>(); }@@
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-25</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>0</size>
+ <string>:)@@ object.

!!!!Throws:



Nothing.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-22</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -5380,7 +5197,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -5391,7 +5208,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-24</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -5402,7 +5219,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -5413,109 +5230,203 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-32</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>9</size>
+ <variant>2</variant>
+ <string>!!!Using enable_current_exception() at the Time of the Throw

Here is how cloning can be enabled in a throw-expression (15.1):

[@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-34</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>
#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-28</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>
#include <stdio.h>
#include <errno.h>

typedef boost::error_info<struct tag_errno,int> errno_info;

class file_read_error: public boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:) { };

void
file_read( FILE * f, void * buffer, size_t size )
 {
 if( size!=fread(buffer,1,size,f) )
 throw boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-30</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)(file_read_error()) <<
 errno_info(errno);
 }@]
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-33</id>
+ <id>-27</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>9</size>
+ <size>19</size>
 <variant>2</variant>
- <string>!!!Using enable_current_exception() at the Time of the Throw

Here is how cloning can be enabled in a throw-expression (15.1):

[@#include <(:link </string>
+ <string>!!!Adding of Arbitrary Data at the Point of the Throw

The following example demonstrates how @@errno@@ can be stored in exception objects using Boost Exception:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-7</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <(:link </string>
+ <string>:)>
#include <errno.h>
#include <iostream>

typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-15</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <stdio.h>
#include <errno.h>

typedef boost::error_info<struct tag_errno,int> errno_info;

class file_read_error: public boost::(:link </string>
+ <string>:)<struct tag_errno,int> errno_info; //(1)

class my_error: public boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) { };

void
file_read( FILE * f, void * buffer, size_t size )
 {
 if( size!=fread(buffer,1,size,f) )
 throw boost::(:link </string>
+ <string>:), public std::exception { }; //(2)

void
f()
 {
 throw my_error() << errno_info(errno); //(3)
 }
@]

First, we instantiate the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)(file_read_error()) <<
 errno_info(errno);
 }@]
</string>
+ <string>:)@@ template using a unique identifier -- @@tag_errno@@, and the type of the info it identifies -- @@int@@. This provides compile-time type safety for the various values stored in exception objects.

Second, we define class @@my_error@@, which derives from @@boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)@@.

Finally, (3) illustrates how the @@typedef@@ from (1) can be used with @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-35</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>|operator<<:)()@@ to store values in exception objects at the point of the throw.

The stored @@errno@@ value can be recovered at a later time like this:

[@// ...continued

void
g()
 {
 try
 {
 f();
 }
 catch(
 my_error & x )
 {
 if( boost::shared_ptr<int const> err=boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-18</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)<errno_info>(x) )
 std::cerr << "Error code: " << *err;
 }
 }@]

The @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-18</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)()@@ function template is instantiated with the @@typedef@@ from (1), and is passed an exception object of any type that derives publicly from @@boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)@@. If the exception object contains the requested value, the returned @@(:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)@@ will point to it; otherwise an empty @@(:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)@@ is returned.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-34</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>19</size>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-29</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>21</size>
 <variant>2</variant>
- <string>!!!Adding of Arbitrary Data at the Point of the Throw

The following example demonstrates how @@errno@@ can be stored in exception objects using Boost Exception:

[@#include <(:link </string>
+ <string>!!!Adding of Arbitrary Data to Active Exception Objects

Sometimes the throw site does not have all the information that is needed at the catch site to make sense of what went wrong. Here is an example:

[@#include <stdio.h>
#include <string>
 
class
file_read_error
 {
 public:

 explicit
 file_read_error( std::string const & fn ):
 fn_(fn)
 {
 };

 std::string const &
 file_name() const
 {
 return fn_;
 }

 private:

 std::string fn_;
 };

void
file_read( FILE * f, void * buffer, size_t size )
 {
 if( size!=fread(buffer,1,size,f) )
 throw file_read_error("????");
 }@]

We have defined an exception class @@file_read_error@@ which can store a file name, so that when we catch a @@file_read_error@@ object, we know which file the
failure is related to. However, the @@file_read@@ function does not have the file name at the time of the throw; all it has is a @@FILE@@ handle.

One possible solution is to not use @@FILE@@ handles directly. We could have our own @@class file@@ which stores both a @@FILE@@ handle and a file name, and pass that to @@file_read()@@. However, this could be problematic if we communicate with 3rd party code that does not use our @@class file@@ (probably because they have their own similar class.)

A better solution is to make class @@file_read_error@@ derive (possibly indirectly) from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <errno.h>
#include <iostream>

typedef boost::(:link </string>
+ <string>:)@@, and free the @@file_read()@@ function from the burden of storing the file name in exceptions it throws:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-7</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_errno,int> errno_info; //(1)

class my_error: public boost::(:link </string>
+ <string>:)>
#include <stdio.h>
#include <errno.h>

typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:), public std::exception { }; //(2)

void
f()
 {
 throw my_error() << errno_info(errno); //(3)
 }
@]

First, we instantiate the @@(:link </string>
+ <string>:)<struct tag_errno,int> errno_info;

class file_read_error: public boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ template using a unique identifier -- @@tag_errno@@, and the type of the info it identifies -- @@int@@. This provides compile-time type safety for the various values stored in exception objects.

Second, we define class @@my_error@@, which derives from @@boost::(:link </string>
+ <string>:) { };

void
file_read( FILE * f, void * buffer, size_t size )
 {
 if( size!=fread(buffer,1,size,f) )
 throw file_read_error() << errno_info(errno);
 }@]

If @@file_read()@@ detects a failure, it throws an exception which contains the information that is available at the time, namely the @@errno@@. Other relevant information, such as the file name, can be added in a context higher up the call stack, where it is known naturally:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
@@ -5524,495 +5435,581 @@
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@.

Finally, (3) illustrates how the @@typedef@@ from (1) can be used with @@(:link </string>
+ <string>:)>
#include <boost/shared_ptr.hpp>
#include <stdio.h>
#include <string>

typedef boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@ to store values in exception objects at the point of the throw.

The stored @@errno@@ value can be recovered at a later time like this:

[@// ...continued

void
g()
 {
 try
 {
 f();
 }
 catch(
 my_error & x )
 {
 if( boost::shared_ptr<int const> err=boost::(:link </string>
+ <string>:)<struct tag_file_name,std::string> file_name_info;

boost::shared_ptr<FILE> file_open( char const * file_name, char const * mode );
void file_read( FILE * f, void * buffer, size_t size );

void
parse_file( char const * file_name )
 {
 boost::shared_ptr<FILE> f = file_open(file_name,"rb");
 assert(f);
 try
 {
 char buf[1024];
 file_read( f.get(), buf, sizeof(buf) );
 }
 catch(
 boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<errno_info>(x) )
 std::cerr << "Error code: " << *err;
 }
 }@]

The @@(:link </string>
+ <string>:) & e )
 {
 e << file_name_info(file_name);
 throw;
 }
 }@]

The above function is (almost) exception-neutral -- if an exception is emitted by any function call within the @@try@@ block, @@parse_file()@@ does not need to do any real work, but it intercepts any @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ function template is instantiated with the @@typedef@@ from (1), and is passed an exception object of any type that derives publicly from @@boost::(:link </string>
+ <string>:)@@ object, stores the file name, and re-throws using a throw-expression with no operand (15.1.6). The rationale for catching any @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@. If the exception object contains the requested value, the returned @@(:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)@@ will point to it; otherwise an empty @@(:link http://www.boost.org/libs/smart_ptr/shared_ptr.htm|shared_ptr:)@@ is returned.
</string>
+ <string>:)@@ object is that the file name is relevant to any failure that occurs in @@parse_file()@@, ''even if the failure is unrelated to file I/O''.

As usual, the stored data can be retrieved using @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-18</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)()@@.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-35</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>7</size>
+ <size>17</size>
 <variant>2</variant>
- <string>!!!exception::what()

(:include decl:)

!!!!Returns:

An string representation of all data stored in the @@boost::(:link </string>
+ <string>!!!enable_current_exception()

(:include synopsis:)

!!!!Requirements:

@@T@@ must have an accessible no-throw copy constructor

!!!!Returns:

An object of ''unspecified'' type which derives publicly from @@T@@. That is, the returned object can be intercepted by a @@catch(T &)@@.

!!!!Description:



This function is designed to be used directly in a throw-expression to enable the cloning support in Boost Exception. For example:

[@class
my_exception:
 public std::exception
 {
 };

....
throw boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object by the @@(:link </string>
+ <string>:)(my_exception());@]

Unless @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@ function. See "(:link </string>
+ <string>:)()@@ is called at the time an exception object is used in a throw-expression, an attempt to copy it using @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-6</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)" for details.

!!!!Throws:

Nothing.

!!!!Note:

The return value remains valid until the exception object from which it is obtained is destroyed or modified.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-36</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>7</size>
- <variant>2</variant>
- <string>!!!exception constructors

(:include decl:)

!!!!Effects:

* Default constructor: initializes an empty @@boost::(:link </string>
+ <string>:)()@@ may return an @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object.
* Copy constructor: initializes a @@boost::(:link </string>
+ <string>:)@@ which refers to an instance of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-32</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object which shares with @@x@@ all data added through @@(:link </string>
+ <string>:)@@. See @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-8</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>|operator<<:)()@@, including data that is added at a future time.

!!!!Throws:

Nothing.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-37</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>3</size>
+ <string>:)()@@ for details.

!!!!Note:

Instead of using the @@throw@@ keyword directly, it is preferable to call @@boost::(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-14</id>
+ </shared_ptr>
+ </weak_ptr>
 <variant>2</variant>
- <string>!!!exception destructor

(:include decl:)

!!!!Effects:



Frees all resources associated with a @@boost::(:link </string>
+ <string>:)()@@. This is guaranteed to throw an exception that derives from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object.

!!!!Throws:



Nothing.
</string>
+ <string>:)@@ and supports cloning.
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-38</id>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>13</size>
+ <size>21</size>
 <variant>2</variant>
- <string>!!!Adding Grouped Data to Exceptions

The code snippet below demonstrates how @@boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)@@ can be used to bundle the name of the function that failed, together with the reported @@errno@@ so that they can be added to exception objects more conveniently together:

[@#include <(:link </string>
+ <string>!!Logging of boost::exception Objects

Class @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <boost/shared_ptr.hpp>
#include <stdio.h>
#include <string>
#include <errno.h>

typedef boost::(:link </string>
+ <string>:)@@ provides a virtual member function @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_file_name,std::string> file_name_info;
typedef boost::(:link </string>
+ <string>:::)()@@, with a signature identical to the familiar @@std::exception::what()@@ function. The default implementation returns a string value that is not presentable as a friendly user message, but because it is generated automatically, it is useful for debugging or logging purposes. Here is an example:

[@#include <(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-7</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_function,char const *> function_info;
typedef boost::(:link </string>
+ <string>:)>
#include <iostream>

void f(); //throws unknown types that derive from boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_errno,int> errno_info;
typedef boost::tuple<function_info,errno_info> clib_failure;

class file_open_error: public boost::(:link </string>
+ <string>:).

void
g()
 {
 try
 {
 f();
 }
 catch(
 boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) { };

boost::shared_ptr<FILE>
file_open( char const * name, char const * mode )
 {
 if( FILE * f=fopen(name,mode) )
 return boost::shared_ptr<FILE>(f,fclose);
 else
 throw file_open_error() <<
 file_name_info(name) <<
 clib_failure("fopen",errno);
 }@]

Note that the members of a @@boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)@@ are stored separately in exception objects; they can only be retrieved individually, using @@(:link </string>
+ <string>:) & e )
 {
 std::cerr << e.(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@.
</string>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-39</id>
- </shared_ptr>
- </weak_ptr>
- <container>
- <size>39</size>
+ <string>:::)();
 }
 }@]

The @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-19</id>
+ </shared_ptr>
+ </weak_ptr>
 <variant>2</variant>
- <string>!!!Cloning and Re-throwing an Exception

When you catch a @@boost::(:link </string>
+ <string>:::)()@@ member function iterates over all data objects stored in the @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@, you can call @@(:link </string>
+ <string>:)@@ through @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ to get an @@(:link </string>
+ <string>|operator<<:)()@@. The returned string is constructed by converting each data object to string and then concatenating these strings together.

When the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object:

[@#include <(:link </string>
+ <string>:)<Tag,T>@@ template is instantiated, the system attempts overload resolution for an unqualified call to @@to_string(x)@@, where @@x@@ is of type @@T@@. If this is successful, the @@to_string()@@ overload is used to convert objects of type @@T@@ to string.

Otherwise, the system attempts overload resolution for @@s << x@@, where @@s@@ is a @@std::ostringstream@@ and @@x@@ is of type @@T@@. If this is successful, the @@operator<<@@ overload is used to convert objects of type @@T@@ to string.

Otherwise the system is unable to convert objects of type @@T@@ to string, and an unspecified stub string value is used without issuing a compile error.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-32</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>5</size>
+ <variant>2</variant>
+ <string>!!!unknown_exception

(:include synopsis:)

This type is used by the (:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-8</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <boost/thread.hpp>
#include <boost/bind.hpp>

void do_work(); //throws cloning-enabled boost::(:link </string>
+ <string>|cloning:) support in Boost Exception. Please see @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)s

void
worker_thread( boost::(:link </string>
+ <string>:)()@@.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-33</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-34</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-35</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>7</size>
+ <variant>2</variant>
+ <string>!!!operator<<()

(:include synopsis:)

!!!!Requirements:

@@E@@ must be @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) & error )
 {
 try
 {
 do_work();
 error = boost::(:link </string>
+ <string>:)@@, or a type that derives (indirectly) from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)();
 }
 catch(
 ... )
 {
 error = boost::(:link </string>
+ <string>:)@@.

!!!!Effects:

* The first overload stores a copy of @@v@@ into @@x@@. If @@x@@ already contains data of type @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)();
 }
 }@]

In the above example, note that @@(:link </string>
+ <string>:)<Tag1,T1>@@, that data is overwritten.
* The @@boost::(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html|tuple:)@@ overload is equivalent to @@x << v.(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#accessing_elements|get:)<0>() << ... << v.(:link http://www.boost.org/libs/tuple/doc/tuple_users_guide.html#accessing_elements|get:)<N>()@@.

!!!!Returns:

@@x@@.

(:include throws:)
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-36</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>13</size>
+ <variant>2</variant>
+ <string>!!exception



(:include synopsis:)

Class @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ captures the original type of the exception object. The exception can be thrown again using the @@(:link </string>
+ <string>:)@@ is designed to be used as a universal base for user-defined exception types.

An object of any type deriving from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-11</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ function:

[@// ...continued

void
work()
 {
 boost::(:link </string>
+ <string>:)@@ can store data of arbitrary types, using the @@</string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) error;
 boost::(:link http://www.boost.org/doc/html/boost/thread.html|thread:) t( boost::(:link http://www.boost.org/libs/bind/bind.html|bind:)(worker_thread,boost::(:link http://www.boost.org/doc/html/ref.html|ref:)(error)) );
 t.(:link http://www.boost.org/doc/html/boost/thread.html|join:)();
 if( error )
 boost::(:link </string>
+ <string>@@ wrapper and @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-11</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)(error);
 }@]

@@(:link </string>
+ <string>|operator<<:)()@@.

To retrieve data from a @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ could fail to copy the original exception object in the following cases:

* if there is not enough memory, in which case the returned @@(:link </string>
+ <string>:)@@ object, use the @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-18</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ points to an instance of @@std::bad_alloc@@, or
* if @@(:link </string>
+ <string>:)()@@ function template.

(:include members:)
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-37</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>0</size>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-38</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>11</size>
+ <variant>2</variant>
+ <string>!!Transporting of Arbitrary Data to the Catch Site

All exception types that derive from @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-13</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ was not used in the throw-expression passed to the original @@throw@@ statement and the current implementation does not have the necessary compiler-specific support to copy the exception automatically, in which case the returned @@(:link </string>
+ <string>:)@@ can be used as type-safe containers of arbitrary data objects, while complying with the no-throw requirements (15.5.1) of the ANSI C++ standard for exception classes. Data can be added to a @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ points to an instance of @@(:link </string>
+ <string>:)@@ at the time of the throw, or at a later time.

(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-16</id>
+ <id>-27</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@.



Regardless, the use of @@(:link </string>
+ <string>:)

(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-14</id>
+ <id>-29</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ and @@(:link </string>
+ <string>:)
(:include </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-11</id>
+ <id>-13</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)()@@ in the above examples is well-formed.
</string>
+ <string>:)
</string>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-40</id>
+ <id>-39</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>21</size>
+ <size>7</size>
 <variant>2</variant>
- <string>!!!Adding of Arbitrary Data to Active Exception Objects

Sometimes the throw site does not have all the information that is needed at the catch site to make sense of what went wrong. Here is an example:

[@#include <stdio.h>
#include <string>
 
class
file_read_error
 {
 public:

 explicit
 file_read_error( std::string const & fn ):
 fn_(fn)
 {
 };

 std::string const &
 file_name() const
 {
 return fn_;
 }

 private:

 std::string fn_;
 };

void
file_read( FILE * f, void * buffer, size_t size )
 {
 if( size!=fread(buffer,1,size,f) )
 throw file_read_error("????");
 }@]

We have defined an exception class @@file_read_error@@ which can store a file name, so that when we catch a @@file_read_error@@ object, we know which file the
failure is related to. However, the @@file_read@@ function does not have the file name at the time of the throw; all it has is a @@FILE@@ handle.

One possible solution is to not use @@FILE@@ handles directly. We could have our own @@class file@@ which stores both a @@FILE@@ handle and a file name, and pass that to @@file_read()@@. However, this could be problematic if we communicate with 3rd party code that does not use our @@class file@@ (probably because they have their own similar class.)

A better solution is to make class @@file_read_error@@ derive (possibly indirectly) from @@boost::(:link </string>
+ <string>!!!BOOST_ERROR_INFO

(:include synopsis:)

This macro is designed to be used with @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-35</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@, and free the @@file_read()@@ function from the burden of storing the file name in exceptions it throws:

[@#include <(:link </string>
+ <string>|operator<<:)()@@ when throwing a @@boost::(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-36</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <stdio.h>
#include <errno.h>

typedef boost::(:link </string>
+ <string>:)@@, to store information about the location of the throw statement. It can be chained with other @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-11</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_errno,int> errno_info;

class file_read_error: public boost::(:link </string>
+ <string>:)@@s in a single throw expression.
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-40</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>15</size>
+ <variant>2</variant>
+ <string>!!!exception_ptr

(:include synopsis:)

The @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) { };

void
file_read( FILE * f, void * buffer, size_t size )
 {
 if( size!=fread(buffer,1,size,f) )
 throw file_read_error() << errno_info(errno);
 }@]

If @@file_read()@@ detects a failure, it throws an exception which contains the information that is available at the time, namely the @@errno@@. Other relevant information, such as the file name, can be added in a context higher up the call stack, where it is known naturally:

[@#include <(:link </string>
+ <string>:)@@ type can be used to refer to a copy of an exception object. It is Default Constructible, Copy Constructible, Assignable and Equality Comparable; @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-12</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)>
#include <boost/shared_ptr.hpp>
#include <stdio.h>
#include <string>

typedef boost::(:link </string>
+ <string>:)@@'s operations do not throw.

Two instances of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)<struct tag_file_name,std::string> file_name_info;

boost::shared_ptr<FILE> file_open( char const * file_name, char const * mode );
void file_read( FILE * f, void * buffer, size_t size );

void
parse_file( char const * file_name )
 {
 boost::shared_ptr<FILE> f = file_open(file_name,"rb");
 assert(f);
 try
 {
 char buf[1024];
 file_read( f.get(), buf, sizeof(buf) );
 }
 catch(
 boost::(:link </string>
+ <string>:)@@ are equivalent and compare equal if and only if they refer to the same exception.

The default constructor of @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:) & e )
 {
 e << file_name_info(file_name);
 throw;
 }
 }@]

The above function is (almost) exception-neutral -- if an exception is emitted by any function call within the @@try@@ block, @@parse_file()@@ does not need to do any real work, but it intercepts any @@boost::(:link </string>
+ <string>:)@@ produces the null value of the type. The null value is equivalent only to itself.

!!!!Note:

@@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-40</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object, stores the file name, and re-throws using a throw-expression with no operand (15.1.6). The rationale for catching any @@boost::(:link </string>
+ <string>:)@@ objects are returned by @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-7</id>
+ <id>-16</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
- <string>:)@@ object is that the file name is relevant to any failure that occurs in @@parse_file()@@, ''even if the failure is unrelated to file I/O''.

As usual, the stored data can be retrieved using @@(:link </string>
+ <string>:)()@@ and @@(:link </string>
 <variant>1</variant>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-9</id>
+ <id>-5</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -6074,9 +6071,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>1</size>
- <variant>2</variant>
- <string>!!!!Throws:

@@std::bad_alloc@@, or any exception emitted by @@T1..TN@@ copy constructor.
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -6109,7 +6104,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>!!!!Throws:

@@std::bad_alloc@@, or any other exception resulting from copying any of the arguments of @@(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-11</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)()@@.
</string>
 </container>
 </pair>
 <pair>
@@ -6215,7 +6221,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6226,7 +6232,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-22</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6237,29 +6243,18 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>!!!!Throws:

@@std::bad_alloc@@, or any other exception resulting from copying any of the arguments of @@(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-21</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)()@@.
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-24</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6270,7 +6265,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6281,7 +6276,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6292,7 +6287,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-27</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6303,7 +6298,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6314,7 +6309,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-29</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6325,7 +6320,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6336,7 +6331,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6384,7 +6379,9 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>1</size>
+ <variant>2</variant>
+ <string>!!!!Throws:

@@std::bad_alloc@@, or any exception emitted by @@T1..TN@@ copy constructor.
</string>
 </container>
 </pair>
 <pair>
@@ -6486,36 +6483,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>7</size>
- <variant>2</variant>
- <string>(:include </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-36</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)
(:include </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-37</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)
(:include </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-35</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -6665,7 +6633,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6676,7 +6644,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-22</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6687,7 +6655,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6698,7 +6666,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-24</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6709,7 +6677,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6720,7 +6688,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6731,7 +6699,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-27</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6742,7 +6710,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6753,7 +6721,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-29</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6764,7 +6732,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-30</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6775,7 +6743,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -6834,7 +6802,36 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>7</size>
+ <variant>2</variant>
+ <string>(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-20</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-21</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)
(:include </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-19</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)</string>
 </container>
 </pair>
 <pair>
@@ -6903,7 +6900,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-6</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 <pair>
@@ -6925,18 +6933,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-31</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -6947,27 +6944,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>5</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-15</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@\\
@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-29</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -6978,18 +6955,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-15</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -7007,7 +6973,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-6</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -7029,7 +6995,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -7055,18 +7021,7 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-27</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
@@ -7084,7 +7039,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-33</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -7117,7 +7072,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-6</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -7132,7 +7087,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-22</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 <pair>
@@ -7143,17 +7109,6 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
- </container>
- </pair>
- <pair>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-19</id>
- </shared_ptr>
- </weak_ptr>
- <container>
 <size>3</size>
 <variant>2</variant>
 <string>@@#include <(:link </string>
@@ -7161,7 +7116,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <variant>2</variant>
@@ -7172,7 +7127,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-20</id>
+ <id>-19</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7183,7 +7138,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-29</id>
+ <id>-20</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7194,7 +7149,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-30</id>
+ <id>-21</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7205,95 +7160,51 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-21</id>
+ <id>-22</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-15</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-22</id>
+ <id>-23</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-15</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-23</id>
+ <id>-24</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-25</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-24</id>
+ <id>-25</id>
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>3</size>
- <variant>2</variant>
- <string>@@#include <(:link </string>
- <variant>1</variant>
- <weak_ptr>
- <expired>0</expired>
- <shared_ptr>
- <id>-25</id>
- </shared_ptr>
- </weak_ptr>
- <variant>2</variant>
- <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ <size>0</size>
 </container>
 </pair>
 <pair>
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-25</id>
+ <id>-26</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7304,7 +7215,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-26</id>
+ <id>-27</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7315,7 +7226,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-27</id>
+ <id>-28</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7326,7 +7237,7 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-31</id>
+ <id>-29</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7337,7 +7248,29 @@
 <weak_ptr>
 <expired>0</expired>
 <shared_ptr>
- <id>-28</id>
+ <id>-30</id>
+ </shared_ptr>
+ </weak_ptr>
+ <container>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-34</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
+ </container>
+ </pair>
+ <pair>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-31</id>
 </shared_ptr>
 </weak_ptr>
 <container>
@@ -7352,7 +7285,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-6</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 <pair>
@@ -7385,7 +7329,27 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>5</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-28</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@\\
@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-23</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 <pair>
@@ -7396,7 +7360,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-24</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 <pair>
@@ -7429,7 +7404,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-28</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 <pair>
@@ -7440,7 +7426,18 @@
 </shared_ptr>
 </weak_ptr>
 <container>
- <size>0</size>
+ <size>3</size>
+ <variant>2</variant>
+ <string>@@#include <(:link </string>
+ <variant>1</variant>
+ <weak_ptr>
+ <expired>0</expired>
+ <shared_ptr>
+ <id>-6</id>
+ </shared_ptr>
+ </weak_ptr>
+ <variant>2</variant>
+ <string>:)>@@

[@namespace
boost
 {
(:include decl:)
 }@]
</string>
 </container>
 </pair>
 </sorted>
@@ -7510,12 +7507,6 @@
 <id>-20</id>
 </shared_ptr>
 <shared_ptr>
- <id>-29</id>
- </shared_ptr>
- <shared_ptr>
- <id>-30</id>
- </shared_ptr>
- <shared_ptr>
 <id>-21</id>
 </shared_ptr>
 <shared_ptr>
@@ -7537,10 +7528,16 @@
 <id>-27</id>
 </shared_ptr>
 <shared_ptr>
- <id>-31</id>
+ <id>-28</id>
 </shared_ptr>
 <shared_ptr>
- <id>-28</id>
+ <id>-29</id>
+ </shared_ptr>
+ <shared_ptr>
+ <id>-30</id>
+ </shared_ptr>
+ <shared_ptr>
+ <id>-31</id>
 </shared_ptr>
 <shared_ptr>
 <id>-32</id>
@@ -7588,7 +7585,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-17</id>
+ <id>-37</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7605,7 +7602,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-36</id>
+ <id>-20</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7622,7 +7619,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-18</id>
+ <id>-8</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7639,7 +7636,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-20</id>
+ <id>-38</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7656,7 +7653,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-32</id>
+ <id>-15</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7680,7 +7677,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-39</id>
+ <id>-12</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7704,7 +7701,7 @@
 </path>
 </file>
 <shared_ptr>
- <id>-12</id>
+ <id>-7</id>
 </shared_ptr>
 </pair>
 <pair>
@@ -7728,7 +7725,7 @@
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