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boost::mpl::map and boost::mpl::for_each -- code does not compile -- any help appreciated
by peter_foelsche＠agilent.com 07 Oct '08

07 Oct '08

#include <boost/mpl/map.hpp> #include <iostream> #include <boost/mpl/at.hpp> #include <boost/mpl/placeholders.hpp> #include <boost/mpl/for_each.hpp> typedef boost::mpl::map< boost::mpl::pair< boost::mpl::int_<0>, boost::mpl::int_<3> >, boost::mpl::pair< boost::mpl::int_<1>, boost::mpl::int_<2> >, boost::mpl::pair< boost::mpl::int_<2>, boost::mpl::int_<1> >, boost::mpl::pair< boost::mpl::int_<3>, boost::mpl::int_<0> > > CMapForward; typedef boost::mpl::map< boost::mpl::pair< boost::mpl::int_<0>, boost::mpl::int_<3> >, boost::mpl::pair< boost::mpl::int_<1>, boost::mpl::int_<2> >, boost::mpl::pair< boost::mpl::int_<2>, boost::mpl::int_<1> >, boost::mpl::pair< boost::mpl::int_<3>, boost::mpl::int_<0> > > CMapReverse; template<typename I2E_PAIR, typename E2I> struct CCreatePair:boost::mpl::pair<typename I2E_PAIR::first, boost::mpl::at<E2I, typename I2E_PAIR::second> > { }; struct CDoSomething { template<unsigned int INDEX0, unsigned int INDEX1> inline void operator()(const boost::mpl::pair<boost::mpl::int_<INDEX0>, boost::mpl::int_<INDEX1> > &_r) const { std::cout << INDEX0 << " " << INDEX1 << "\n"; } }; int main(int, char**) { boost::mpl::for_each< CMapForward, template CCreatePair<boost::mpl::_1, CMapReverse> >(CDoSomething()); return 0; } "The first point (using an init() function in preference to a constructor) is bogus. Using constructors and exception handling is a more general and systematic way of dealing with resource acquisition and initialization errors. This style is a relic of pre-exception C++." -- Stroustrup

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[Graph] Subgraphs with bundled properties
by Cooprider, Nathan (US NonSSA) 07 Oct '08

07 Oct '08

I am having some difficulty getting bundled properties working with subgraphs in the BGL. Some sample code is below. If I comment out the subgraph line and rename "PlainGraph" to be just "Graph" then the code compiles. As it is written below, I get a type error (copied below the code below). Any help/pointers would be appreciated. Thank you. Nathan #include <string> #include <boost/graph/adjacency_list.hpp> #include <boost/config.hpp> #include <boost/graph/subgraph.hpp> using namespace boost; struct Node { std::string name; float weight; }; typedef adjacency_list < setS, setS, directedS, property<vertex_index_t, int, Node >, property<edge_index_t, int> > PlainGraph; typedef subgraph<PlainGraph> Graph; int main () { Graph g; Graph::vertex_descriptor tmp = add_vertex(g); put(vertex_index, g, tmp, 42); } Here is the error: /home/ncooprid/local/include/boost/graph/subgraph.hpp: In member function 'typename boost::property_traits<IndexMap>::reference boost::subgraph_local_property_map<GraphPtr, PropertyMap, Tag>::operator[](typename boost::property_traits<IndexMap>::key_type) const [with GraphPtr = boost::subgraph<boost::adjacency_list<boost::setS, boost::setS, boost::directedS, boost::property<boost::vertex_index_t, int, Node>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS> >*, PropertyMap = boost::adj_list_vertex_property_map<boost::adjacency_list<boost::setS, boost::setS, boost::directedS, boost::property<boost::vertex_index_t, int, Node>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS>, int, int&, boost::vert ex_index_t>, Tag = boost::vertex_index_t]': /home/ncooprid/local/include/boost/graph/subgraph.hpp:843: instantiated from 'void boost::put(Property, boost::subgraph<Graph>&, const Key&, const Value&) [with G = boost::adjacency_list<boost::setS, boost::setS, boost::directedS, boost::property<boost::vertex_index_t, int, Node>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS>, Property = boost::vertex_index_t, Key = void*, Value = int]' error.cpp:24: instantiated from here /home/ncooprid/local/include/boost/graph/subgraph.hpp:738: error: conversion from 'boost::subgraph_local_property_map<boost::subgraph<boost::adjacency_lis t<boost::setS, boost::setS, boost::directedS, boost::property<boost::vertex_index_t, int, Node>, boost::property<boost::edge_index_t, int, boost::no_property>, boost: :no_property, boost::listS> >*, boost::adj_list_vertex_property_map<boost::adjacency_list<boost::setS, boost::setS, boost::directedS, boost::property<boost::vertex_index_t, int, Node>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS>, int, int&, boost::vertex_index_t>, boost::vertex_index_t>' to non-scalar type 'boost::adj_list_vertex_property_map<boost::adjacency_list<boost::setS, boost::setS, boost::directedS, boost::property<boost::vertex_index_t, int, Node>, boost::property<boost::edge_index_t, int, boost::no_property>, boost::no_property, boost::listS>, int, int&, boost::vertex_index_t>' requested

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Re: [Boost-users] Error:" Non-const function called for const object" on Sun CC while using boost::multi_index::multi_index_container
by JOAQUIN M. LOPEZ MUÑOZ 07 Oct '08

07 Oct '08

De: Alexander Vinokur [Alexander.Vinokur(a)amdocs.com] Enviado el: martes, 07 de octubre de 2008 18:28 Para: boost-users(a)lists.boost.org CC: JOAQUIN M. LOPEZ MUÑOZ Asunto: RE: Error:" Non-const function called for const object" on Sun CC while using boost::multi_index::multi_index_container > > Joaquin, thank you. > > Here code I compiled. > > // --- File foo3.cpp --- > [...] > const Bar* p4 = new Bar; > p4->~Bar(); // line 19: Error: Non-const function > Bar::__SLIP.DELETER__A() called for const object. OK, seems like the bug we were after, if only in a slightly different guise (deleting a const T* works, but directly calling ~T() on a const object does not). Alex, can you do the following? Please try replacing the /boost/detail/allocator_utilities.hpp file in your local Boost copy with the attached file and rebuild the multi_index_container code that was failing. Does this fix it? If so, I'll commit this version into the trunk so that it'll be available in Boost 1.38 (though you can use it now with your local Boost copy, of course). Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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It is possible to build a static version of boost for the MACOS
by kittymaguire 07 Oct '08

07 Oct '08

Hi I have tried to build the boost libraries on the MacOS as a static library by giving bjam the --buid_type=static but it still built the dynamic version of the libraries. In order to get my application to run, the library load location has to be either in /usr/lib or from the folder where the application started. The problem is that our application is based on xulrunner, and we use a stub application to start xulrunner which is in a different folder. We use the boost libraries in an XPCOM dylib which is loaded from the resources components folder, and for this dylib to be loaded correctly the boost libraries need to placed in the stub application folder. The first time you start the application it will run on but will then fail to run the second time you start it as libraries are being loaded from a location that xulrunner allows it components to run from. So either I need to build the static version of the libraries or change the runtime load path of the libraries. Does anyone know how I do any of these Thanks -- View this message in context: http://www.nabble.com/It-is-possible-to-build-a-static-version-of-boost-for… Sent from the Boost - Users mailing list archive at Nabble.com.

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Fw: Problem linking to Boost Filesystem Library
by DDBeatty＠dstsystems.com 07 Oct '08

07 Oct '08

I found the define BOOST_ALL_DYN_LINK in the config/auto-link headers which causes BOOST_FILESYSTEM_DECL to defined as __declspec(dllimport) and this solved the problem. However, I am not sure why it was necessary to set this define. The headers know that I am using VS2005 (they add vc80 to the library name) and that I am using dynamic libraries (doesn't insert the s in the name). Seems like it should be redundant information to have to define BOOST_ALL_DYN_LINK. Thanks, Doug Beatty ----- Forwarded by Douglas D. Beatty/MF Support/DST/US on 10/06/2008 04:31 PM ----- Douglas D. Beatty/MF Support/DST/US To boost-users(a)lists.boost.org 10/06/2008 03:15 cc PM Subject Problem linking to Boost Filesystem Library I am getting an unresolved external error when auto-linking to the Boost Filesystem Library Compiler: Visual Studio 2005 Boost Library Version: 1.36.0 The error: packagereport.obj : error LNK2001: unresolved external symbol "class boost::system::error_code boost::filesystem::detail::throws" (?throws@detail@filesystem@boost@@3Verror_code@system@3@A) The Boost Libraries were compiled using Visual Studio 2005 as well. I compiled with BOOST_LIB_DIAGNOSTIC and got the following two lines in the output: Linking to lib file: libboost_system-vc80-mt-gd-1_36.lib Linking to lib file: libboost_filesystem-vc80-mt-gd-1_36.lib I added /verbose to the linker and got the following: Processed /DEFAULTLIB:libboost_system-vc80-mt-gd-1_36.lib Processed /DEFAULTLIB:libboost_filesystem-vc80-mt-gd-1_36.lib Searching ..\3rdParty\Boost\lib\libboost_system-vc80-mt-gd-1_36.lib: Found "class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (?get_system_category@system@boost@@YAABVerror_category@12@XZ) Referenced in packagereport.obj Loaded libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Found "class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)" (?get_generic_category@system@boost@@YAABVerror_category@12@XZ) Referenced in packagereport.obj Loaded libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Found __IMPORT_DESCRIPTOR_boost_system-vc80-mt-gd-1_36 Referenced in libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Referenced in libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Loaded libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Found boost_system-vc80-mt-gd-1_36_NULL_THUNK_DATA Referenced in libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Loaded libboost_system-vc80-mt-gd-1_36.lib(boost_system-vc80-mt-gd-1_36.dll) Searching ..\3rdParty\Boost\lib\libboost_filesystem-vc80-mt-gd-1_36.lib: Found "class boost::filesystem::file_status __cdecl boost::filesystem::detail::status_api(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class boost::system::error_code &)" (?status_api@detail@filesystem@boost@@YA?AVfile_status@23@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@AAVerror_code@system@3@@Z) Referenced in packagereport.obj Loaded libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Found "class boost::system::error_code __cdecl boost::filesystem::detail::remove_api(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?remove_api@detail@filesystem@boost@@YA?AVerror_code@system@3@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) Referenced in packagereport.obj Loaded libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Found __IMPORT_DESCRIPTOR_boost_filesystem-vc80-mt-gd-1_36 Referenced in libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Referenced in libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Loaded libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Found boost_filesystem-vc80-mt-gd-1_36_NULL_THUNK_DATA Referenced in libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Loaded libboost_filesystem-vc80-mt-gd-1_36.lib(boost_filesystem-vc80-mt-gd-1_36.dll) Using Dumpbin.exe I get the following: >From the dll: 68 43 00011E04 ?throws@detail@filesystem@boost@@3Verror_code@system@3@A >From the lib: ?throws@detail@filesystem@boost@@3Verror_code@system@3@A (class boost::system::error_code boost::filesystem::detail::throws) It looks like the decorated names in the lib and dll match the name that is being searched for by the linker and it looks like the linker found the lib file. Any ideas why this would not be linking? Also, I have tried disabling the auto-linking (using BOOST_ALL_NO_LIB) and linking manually, but I get the same error. Thanks, Doug Beatty ----------------------------------------- This e-mail and any attachments are intended only for the individual or company to which it is addressed and may contain information which is privileged, confidential and prohibited from disclosure or unauthorized use under applicable law. If you are not the intended recipient of this e-mail, you are hereby notified that any use, dissemination, or copying of this e-mail or the information contained in this e-mail is strictly prohibited by the sender. If you have received this transmission in error, please return the material received to the sender and delete all copies from your system.

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Re: [Boost-users] Error:" Non-const function called for const object" on Sun CC while using boost::multi_index::multi_index_container
by Alexander Vinokur 07 Oct '08

07 Oct '08

Joaquin, thank you. Here code I compiled. // --- File foo3.cpp --- struct Bar { virtual ~Bar(){} }; int main() { Bar* p1 = new Bar; delete p1; Bar* p2 = new Bar; p2->~Bar(); const Bar* p3 = new Bar; delete p3; const Bar* p4 = new Bar; p4->~Bar(); // line 19: Error: Non-const function Bar::__SLIP.DELETER__A() called for const object. return 0; } // --------------------------- Compilation: % CC -V CC: Sun C++ 5.9 SunOS_sparc Patch 124863-01 2007/07/25 % CC -m64 -I/home/BOOST/boost_1_34_0 -library=stlport4 foo3.cpp "foo3.cpp", line 19: Error: Non-const function Bar::__SLIP.DELETER__A() called for const object. 1 Error(s) detected. Alex Vinokur This message and the information contained herein is proprietary and confidential and subject to the Amdocs policy statement, you may review at http://www.amdocs.com/email_disclaimer.asp

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fast_pool_allocator question
by Ta-Cheng Lin 07 Oct '08

07 Oct '08

Hi: I try fast_pool_allocator and it does not release memory. See the following program Any ideas? Thanks! -Kawasaki --- Begin --- #include <vector> #include <boost/pool/pool_alloc.hpp> #include <list> using namespace std; using namespace boost; #include "memusage.cpp" //-------------------------------------------------- void func() { list<int, fast_pool_allocator<int> > v; // list<int> v; for (int i = 0; i < 1000000; ++i) { v.push_back(i); } printf("2. MEM USAGE = %d\n", getMemUsage()); } //-------------------------------------------------- int main(int argc, char **argv) { printf("1. MEM USAGE = %d\n", getMemUsage()); func(); func(); func(); /// Exiting the function does NOT free the system memory allocated by the pool allocator // You must call // boost::singleton_pool<boost::pool_allocator_tag, sizeof(int)>::release_memory() // in order to force that printf("3. MEM USAGE = %d\n", getMemUsage()); boost::singleton_pool<boost::fast_pool_allocator_tag, sizeof(int)>::release_memory(); printf("4. MEM USAGE = %d\n", getMemUsage()); return 1; } --- END output 1. MEM USAGE = 11 MB 2. MEM USAGE = 35 2. MEM USAGE = 35 2. MEM USAGE = 35 3. MEM USAGE = 35 4. MEM USAGE = 35 // after release_memory() is called,

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Error:" Non-const function called for const object" on Sun CC while using boost::multi_index::multi_index_container
by Alexander Vinokur 07 Oct '08

07 Oct '08

Hi, CC: Sun C++ 5.9 SunOS_sparc Patch 124863-01 2007/07/25 Boost 1.34 Here are fragments of code that produces error "Non-const function called for const object". // -------------------- struct Foo { int m_int1; int m_int2; int get1 () const; int get2 () const;; ~Foo(); }; int Foo::get1 () const; { return m_int1; } int Foo::get2 () const; { return m_int2; } Foo::~Foo() { } // -------------------- typedef boost::multi_index::composite_key < Foo, BOOST_MULTI_INDEX_CONST_MEM_FUN( Foo, int, get1), BOOST_MULTI_INDEX_CONST_MEM_FUN( Foo, int, get2) > FooKey; // -------------------- typedef boost::multi_index::multi_index_container < Foo, boost::multi_index::indexed_by < boost::multi_index::hashed_unique < FooKey > > > FooContainer; // ================== // This function produces compilation error void bar () { FooContainer fooContainer; } Error message: "/home/BOOST/boost_1_34_0/boost/detail/allocator_utilities.hpp", line 176: Error: Non-const function Foo::__SLIP.DELETER__H() called for const object. "/home/BOOST/boost_1_34_0/boost/multi_index/detail/index_base.hpp", line 105: Where: While instantiating "boost::detail::allocator::destroy<Foo>(const Foo*)". "/home/BOOST/boost_1_34_0/boost/multi_index/detail/index_base.hpp", line 105: Where: Instantiated from non-template code. Important. If destructor ~Foo() is not virtual then there are no errors. Alex Vinokur This message and the information contained herein is proprietary and confidential and subject to the Amdocs policy statement, you may review at http://www.amdocs.com/email_disclaimer.asp

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[lambda] Serialising Lmanda functions
by Robert Jones 07 Oct '08

07 Oct '08

Is there a 'standard' solution to this problem? #include <list> #include <iostream> #include "boost/lambda/lambda.hpp" typedef std::list<unsigned> List; std::ostream & operator<<( std::ostream & s, const List & ); int main( ) { using namespace boost::lambda; List my_list; ( std::cout << _1 << "\n" )( my_list ); } The compiler cannot find a match for operator<<() because the operator and the type are defined in different namespaces, but it's really a nuisance! - Rob.

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[multi_array] size( ) of views.
by Robert Jones 07 Oct '08

07 Oct '08

Am I correct in thinking that multi_array has a size() method which reports the first subscript, whereas views of multi_array do not support tht size() method? - Rob.

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