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Novice Problem
by master master 31 Dec '08

31 Dec '08

This code is running in codepad http://boost.codepad.org/ybbmMUEc (available ony for 24 hrs) But when I run this at my side it gives error 1>------ Build started: Project: stringmanipulation, Configuration: Debug Win32 ------ 1>Compiling... 1>stringcases.cpp 1>c:\documents and settings\administrator\my documents\visual studio 2008\projects\formattesting\stringmanipulation\stringcases.cpp(115) : error C2275: 'std::string' : illegal use of this type as an expression 1>c:\documents and settings\administrator\my documents\visual studio 2008\projects\formattesting\stringmanipulation\stringcases.cpp(115) : error C2146: syntax error : missing ')' before identifier 'elem' 1>c:\documents and settings\administrator\my documents\visual studio 2008\projects\formattesting\stringmanipulation\stringcases.cpp(115) : error C2059: syntax error : ')' 1>c:\documents and settings\administrator\my documents\visual studio 2008\projects\formattesting\stringmanipulation\stringcases.cpp(116) : error C2143: syntax error : missing ';' before '{' 1>c:\documents and settings\administrator\my documents\visual studio 2008\projects\formattesting\stringmanipulation\stringcases.cpp(117) : error C2065: 'elem' : undeclared identifier 1>c:\documents and settings\administrator\my documents\visual studio 2008\projects\formattesting\stringmanipulation\stringcases.cpp(115) : error C3861: 'BOOST_FOREACH': identifier not found 1>Build log was saved at "file://c:\Documents and Settings\Administrator\My Documents\Visual Studio 2008\Projects\FormatTesting\stringmanipulation\Debug\BuildLog.htm" 1>stringmanipulation - 6 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== If I comment BOOST_FOREACH loop every thing runs fine. Where is the problem??? I am using VC 9.0 (Visual Studio 2008) and boost_1_36_0. If this issue is already solved in boost 1.37 then which lib I need to download from trunk. Give me url like this http://cgs.hpi.uni-potsdam.de/trac/vrs/browser/trunk/3rd-party/boost-1.36.0… Rahul To create something exceptional ________________________________ -Master4Master "Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential, and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Virus Warning: Although I have taken reasonable precautions to ensure no viruses are present in this email, I cannot accept responsibility for any loss or damage arising from the use of this email or attachment.." Speak out for justice and peace, even if your voice trembles. Unlimited freedom, unlimited storage. Get it now, on http://help.yahoo.com/l/in/yahoo/mail/yahoomail/tools/tools-08.html/

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[newbie] using non "header-only" boost libraries, but not linking the ".lib"
by Enrique Nieloud 31 Dec '08

31 Dec '08

I'm using filesystem library. I'm using it under vs2005 on windows, and g++ on mac. Instead of linking the .lib I'd like to include the source files of the fs library in my project. I tried to include all the ".cpp" under the filesystem/src directory in the vs2005 project. But the linker still ask for the lib. As far as know I didn't mention the .lib in the project. Why is that? The project files are created using cmake.

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[MultiIndex] STL algorithm support for multi_index_containers
by Arno Schödl 31 Dec '08

31 Dec '08

Hello, we have added support for using multi_index ordered index iterators in lieu of random access iterators in standard algorithms that require sorted ranges, e.g. lower_bound, upper_bound, equal_range, and binary_search. This is useful when using these iterators in generic algorithms that internally call lower_bound/upper_bound/etc. Our implementation is attached. We are currently overloading std::lower_bound/... which is illegal. I propose introducing a boost::lower_bound/..., where we can ignore the C++ standard restriction, and where the standard implementation forwards to std::lower_bound. Runtime is O(log N), where N is the total number of elements in the container, rather than, as it would be optimal, the number of elements within the (sub)range on which the algorithm is called. The problem is that the red-black tree nodes do not store the tree level number, so we cannot find the parent node that encompasses the whole subrange in linear time. I am not sure this is practically relevant. In any case, using the sortedness of the tree rather than treating the iterators as arbitrary bidirectional iterators is a step forward. Any opinions? Regards, Arno -- Dr. Arno Schoedl · aschoedl(a)think-cell.com Technical Director think-cell Software GmbH · Invalidenstr. 34 · 10115 Berlin, Germany http://www.think-cell.com · phone +49-30-666473-10 · toll-free (US) +1-800-891-8091 Directors: Dr. Markus Hannebauer, Dr. Arno Schoedl · Amtsgericht Charlottenburg, HRB 85229

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GSM Programming
by master master 31 Dec '08

31 Dec '08

I want to program GSM mobile. GSM mobile will be connected to a PC via a serial port or usb cable or bluetooth etc. I will send commands from my PC and that command will operate the mobile like sending sms, calling numbers, etc. For this type of programming what libraries should I refer ??? Currently I am referring Asio for socket and threading. What else I need to refer ? Currently I am in analysis stage. Rahul To create something exceptional ________________________________ -Master4Master "Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential, and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Virus Warning: Although I have taken reasonable precautions to ensure no viruses are present in this email, I cannot accept responsibility for any loss or damage arising from the use of this email or attachment." Speak out for justice and peace, even if your voice trembles. Share files, take polls, and make new friends - all under one roof. Go to http://in.promos.yahoo.com/groups/

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Interest in a Boost.JSON library?
by Kirit Sælensminde 31 Dec '08

31 Dec '08

As part of our web application framework (currently being ported from Windows to Linux) we have a JSON parser and library that might be of interest to a wider community as part of the Boost libraries. It uses a Spirit parser that deals correctly with embedded UTF-16 inside strings. The JSON blobs themselves are built on Boost.Variant and can store null, booleans, strings, int64_t, doubles and arrays & objects. The strings are our Unicode string implementation -- how this should be dealt with in Boost is an open question maybe only cleanly soluble when Boost has it's own proper Unicode string handling. A templated adapter layer could be used I think for both the string and the numeric types. There is also the internal implementation of the array and objects which could be moved to a policy based design. At the moment we use std::vector and std::map with boost::shared_ptr< json > as the value type. The JSON objects are immutable and use a thread safe CoW implementation when changes are required (handled through a separate jcursor object). One thing that is missing is a good EDSL for creating JSON blobs within C++ source code. The latest implementations is where we are using it to create an ACID JSON database and is here: http://svn.felspar.com/public/fost-base/branches/dbschema/Cpp/include/fost/… The parser itself is here: http://svn.felspar.com/public/fost-base/branches/dbschema/Cpp/include/fost/… There's a lot of room for improvement, but hopefully it's a good start. K

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[TR1] can't compile with Boost installed in /usr/include (and with Boost.Test)
by Ling Li 30 Dec '08

30 Dec '08

Fedora rawhide recently bumped the boost version from 1.34 to 1.37 so I gave it a try. I can't compile the code below: [ling@fedora-vm test]$ cat t.cpp #include <boost/test/unit_test.hpp> #include <memory> BOOST_AUTO_TEST_SUITE(dummy) BOOST_AUTO_TEST_CASE(foo) { std::tr1::shared_ptr<int> bar; } BOOST_AUTO_TEST_SUITE_END() [ling@fedora-vm test]$ g++ -I /usr/include/boost/tr1/tr1 -I /usr/include -c t.cpp In file included from /usr/include/boost/tr1/tr1/utility:19, from /usr/include/boost/config/no_tr1/utility.hpp:21, from /usr/include/boost/config/select_stdlib_config.hpp:20, from /usr/include/boost/config.hpp:40, from /usr/include/boost/test/detail/config.hpp:19, from /usr/include/boost/test/utils/class_properties.hpp:20, from /usr/include/boost/test/predicate_result.hpp:19, from /usr/include/boost/test/test_tools.hpp:19, from /usr/include/boost/test/unit_test.hpp:19, from t.cpp:1: /usr/include/boost/tr1/detail/config_all.hpp:117:26: error: no include path in which to search for utility In file included from /usr/include/boost/tr1/detail/config_all.hpp:130, from /usr/include/boost/tr1/tr1/utility:19, from /usr/include/boost/config/no_tr1/utility.hpp:21, from /usr/include/boost/config/select_stdlib_config.hpp:20, from /usr/include/boost/config.hpp:40, from /usr/include/boost/test/detail/config.hpp:19, from /usr/include/boost/test/utils/class_properties.hpp:20, from /usr/include/boost/test/predicate_result.hpp:19, from /usr/include/boost/test/test_tools.hpp:19, from /usr/include/boost/test/unit_test.hpp:19, from t.cpp:1: /usr/include/boost/tr1/detail/config.hpp:25:29: error: no include path in which to search for utility Defining BOOST_TR1_DISABLE_INCLUDE_NEXT helps to reduce the two errors to one, [ling@fedora-vm test]$ g++ -DBOOST_TR1_DISABLE_INCLUDE_NEXT -I /usr/include/boost/tr1/tr1 -I /usr/include -c t.cpp In file included from /usr/include/boost/tr1/detail/config_all.hpp:130, from /usr/include/boost/tr1/tr1/utility:19, from /usr/include/boost/config/no_tr1/utility.hpp:21, from /usr/include/boost/config/select_stdlib_config.hpp:20, from /usr/include/boost/config.hpp:40, from /usr/include/boost/test/detail/config.hpp:19, from /usr/include/boost/test/utils/class_properties.hpp:20, from /usr/include/boost/test/predicate_result.hpp:19, from /usr/include/boost/test/test_tools.hpp:19, from /usr/include/boost/test/unit_test.hpp:19, from t.cpp:1: /usr/include/boost/tr1/detail/config.hpp:25:29: error: no include path in which to search for utility I also have a local copy of Boost 1.37 at ~/include/boost, and I have no problems with that: [ling@fedora-vm test]$ g++ -I ~/include/boost/boost/tr1/tr1 -I ~/include/boost -c t.cpp Do you know what I am missing here? Thanks in advance for any tips.

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boost::date_time and gcc-4.3 with enabled optimization.
by Dmitry V. Krivenok 30 Dec '08

30 Dec '08

Hello! Please look at this simple example: krivenok@develop2 11:51:44 /tmp/date $ cat date.cpp #include <string> #include <boost/date_time.hpp> const std::string Date(boost::posix_time::ptime posix_time) { return boost::gregorian::to_iso_extended_string(posix_time.date()); } krivenok@develop2 11:51:54 /tmp/date $ I have two compilers (gcc-4.1.2 and gcc-4.3.2) and boost-1.37.0 installed on my linux host. I wrote simple test to demonstrate the problem: krivenok@develop2 11:51:54 /tmp/date $ export CC=g++-4.1.2 krivenok@develop2 11:52:32 /tmp/date $ for((i=0;i<4;i++)) do echo "Optimization level $i" ; $CC -O$i -Wall -I/usr/local/dev/boost/include/ date.cpp -c ; done Optimization level 0 Optimization level 1 Optimization level 2 Optimization level 3 krivenok@develop2 11:52:40 /tmp/date $ export CC=g++-4.3.2 krivenok@develop2 11:52:44 /tmp/date $ for((i=0;i<4;i++)) do echo "Optimization level $i" ; $CC -O$i -Wall -I/usr/local/dev/boost/include/ date.cpp -c ; done Optimization level 0 Optimization level 1 /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp: In function 'const std::string Date(boost::posix_time::ptime)': /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp:68: warning: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' may be used uninitialized in this function /usr/local/dev/boost/include/boost/date_time/gregorian_calendar.ipp:122: note: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' was declared here /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp:64: warning: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' may be used uninitialized in this function /usr/local/dev/boost/include/boost/date_time/gregorian_calendar.ipp:122: note: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' was declared here Optimization level 2 /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp: In function 'const std::string Date(boost::posix_time::ptime)': /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp:68: warning: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' may be used uninitialized in this function /usr/local/dev/boost/include/boost/date_time/gregorian_calendar.ipp:122: note: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' was declared here /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp:64: warning: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' may be used uninitialized in this function /usr/local/dev/boost/include/boost/date_time/gregorian_calendar.ipp:122: note: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' was declared here Optimization level 3 /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp: In function 'const std::string Date(boost::posix_time::ptime)': /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp:68: warning: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' may be used uninitialized in this function /usr/local/dev/boost/include/boost/date_time/gregorian_calendar.ipp:122: note: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' was declared here /usr/local/dev/boost/include/boost/date_time/constrained_value.hpp:64: warning: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' may be used uninitialized in this function /usr/local/dev/boost/include/boost/date_time/gregorian_calendar.ipp:122: note: 'year.boost::gregorian::greg_year::<anonymous>.boost::CV::constrained_value<boost::CV::simple_exception_policy<short unsigned int, 1400u, 10000u, boost::gregorian::bad_year> >::value_' was declared here krivenok@develop2 11:52:50 /tmp/date $ As you can see the example compiled using gcc-4.1.2 compiles without any warnings regardless of optimization level. However, gcc-4.3.2 produces a lot of strange warnings if optimization is enabled. I don't really know is it gcc or boost issue. Is it safe to use boost::date_time with gcc-4.3.2 and -O3 optimization level? Thank you beforehand! -- Sincerely yours, Dmitry V. Krivenok Orange System Company Saint-Petersburg, Russia work phone: +7 812 332-32-40 cellular phone: +7 921 576-70-91 e-mail: krivenok(a)orangesystem.ru web: http://www.orangesystem.ru skype: krivenok_dmitry jabber: krivenok_dmitry(a)jabber.ru icq: 242-526-443

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Problem running the official boost regression tests on Vista x86
by Neil Groves 30 Dec '08

30 Dec '08

Hi, I am having trouble following the instructions for running the regression tests on the trunk as described here: http://www.boost.org/development/running_regression_tests.html Compiler: MSVC9 Express OS: Vista Ultimate x86 Python: python 2.5 I am attempting to use the command line: python.exe run.py --toolset=msvc After many hours of execution I get this error: # Executing SVN command "svn --non-interactive info --xml "C:\Users\neil\source\ boost-trunk\boost" >"C:\Users\neil\source\boost-trunk\boost\svn_info.txt"" # Collecting test logs into "C:\Users\neil\source\boost-trunk\results\None.xml". .. Traceback (most recent call last): File "run.py", line 60, in <module> runner(root) File "C:\Users\neil\source\boost-trunk\tools_regression_src\regression.py", line 193, in __init__ self.main() File "C:\Users\neil\source\boost-trunk\tools_regression_src\regression.py", line 551, in main getattr(self,action_m)() File "C:\Users\neil\source\boost-trunk\tools_regression_src\regression.py", line 517, in command_regression self.command_collect_logs() File "C:\Users\neil\source\boost-trunk\tools_regression_src\regression.py", line 424, in command_collect_logs revision ) File "C:\Users\neil\source\boost-trunk\tools_regression_src\collect_and_upload_logs.py", line 309, in collect_logs, 'revision': revision File "c:\python25\lib\xml\sax\saxutils.py", line 132, in startElement self._write(' %s=%s' % (name, quoteattr(value))) File "c:\python25\lib\xml\sax\saxutils.py", line 73, in quoteattr data = escape(data, entities) File "c:\python25\lib\xml\sax\saxutils.py", line 39, in escape data = data.replace("&", "&") AttributeError: 'NoneType' object has no attribute 'replace' Has anyone seen this issue before, or know how to fix it? Thanks in anticipation, Neil Groves

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Format library
by master master 30 Dec '08

30 Dec '08

I am just understanding format library, I came across an example. cout << boost::format("writing %1%, x=%2% : %3%-th step") % "toto" % 40.23 % 50; it prints "writing toto, x=40.230 : 50-th step" and another expression cout << format("writing %s, x=%s : %d-th step \n") % "toto" % 40.23 % 50; it prints "writing toto, x=40.23 : 50-th step " Both expression are printing same result. But these below two expressions give error cout << boost::format("writing %s, x=%2% : %3%-th step") % "toto" % 40.23 % 50; cout << format("writing %1%, x=%s : %d-th step \n") % "toto" % 40.23 % 50; If I am not wrong then this is because " format specifications can not be the combination of ordered types(%1%, %2%, ...) and unodered types(%s, %d, etc) " If this is true then this is the limitation of Format library in Boost or may be I am wrong. So what is the solution if I want to use combination of both types. This is just my requirement, it is not must to do in this way. Rahul To create something exceptional ________________________________ -Master4Master "Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential, and may be privileged. If you are not the intended recipient, you are hereby notified that any review, re-transmission, conversion to hard copy, copying, circulation or other use of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return email, and delete this message and any attachments from your system. Virus Warning: Although I have taken reasonable precautions to ensure no viruses are present in this email, I cannot accept responsibility for any loss or damage arising from the use of this email or attachment." Speak out for justice and peace, even if your voice trembles. Add more friends to your messenger and enjoy! Go to http://messenger.yahoo.com/invite/

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[test] unit tests succeed on abort?
by Dean Michael Berris 30 Dec '08

30 Dec '08

I'm using Boost 1.35 and I notice that when a unit test aborts due to asserts in the code, it doesn't count as a failure -- the end report says "*** No errors detected" when in fact a call to abort() was made due to a failed assert. I'm thinking this would be a bug, but I'd like to ask first whether this is intended behavior before thinking it's a bug with Boost.Test. Have a good day! -- Dean Michael C. Berris Software Engineer, Friendster, Inc.

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