March 2012 - Boost-users - lists.preview.boost.org

Compiling Regex with BCB6 gives error in _epilog.h
by Woomla 08 Mar '12

08 Mar '12

When compiling Boosts Regex (1.33 and 1.49) with BCB6 I get an error in CBuilder6\include\stl\_epilog.h line 28: Declaration syntax error. The line reads: namespace _STLP_STD {}. What can I do to compile regex with BCG6?

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[interprocess] compilation error in interprocess vector
by Andrew Schweitzer 08 Mar '12

08 Mar '12

I'm trying to use interprocess' containers. I get compilation errors when including the container header files. For example: #include <boost/interprocess/containers/vector.hpp> gives: g++ -I../../include -I"/home/schweitz/work/boost/boost_1_49_0" -O3 -Wall -c -fmessage-length=0 -std=c++0x -MMD -MP -MF"EmbeddedServiceProcessor.d" -MT"EmbeddedServiceProcessor.d" -o "EmbeddedServiceProcessor.o" "../EmbeddedServiceProcessor.cpp" In file included from /home/schweitz/work/boost/boost_1_49_0/boost/container/detail/iterators.hpp:27:0, from /home/schweitz/work/boost/boost_1_49_0/boost/container/vector.hpp:38, from /home/schweitz/work/boost/boost_1_49_0/boost/interprocess/containers/vector.hpp:19, from ../EmbeddedServiceProcessor.cpp:295: /home/schweitz/work/boost/boost_1_49_0/boost/container/detail/variadic_templates_tools.hpp:44:19: error: expected nested-name-specifier before ‘add_const_reference’ and so forth. Any suggestions? this is Ubuntu 11.10, and gcc -v reports: gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.6.1/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.1-9ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3) tx Andy

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[wave] dependency tracking #include
by Brian Budge 07 Mar '12

07 Mar '12

Hi all - Image that I might be a masochist, and want to write my own cross-platform build system. I'd want to track dependencies and only rebuild the object files that have modified dependencies. Of course, I could write my own header parser, and manually track #defines and #includes and follow files, etc... but my thought was that a preprocessor already does all of this work. How hard would it be to tap wave for this kind of information? Am I barking up the wrong tree? Is there some other solution that would be better? Thanks, Brian

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[Filesystem] Need to provide filesystem and system libraries to link
by Steve Smith 07 Mar '12

07 Mar '12

Hello, I'm upgrading my code from 1.42 to 1.49. Eventually I will upgrade from filesystem v2 to v3, but for now I'm stuck using v2. I noticed during my recompilation that code using filesystem no longer compiles unless I specify both the -lboost_filesystem and -lboost_system linker arguments; previously I only had to provide the -lboost_filesystem argument. I'm using g++ 4.6.2 on rhel6. I verified this by attempting to compile the file_size example that comes with boost. I was wondering if this is a necessary change due to the differences between 1.42 and 1.49 or if I'm doing something incorrectly. Thanks.

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ANSI/ISO
by Mohsen Pahlevanzadeh 07 Mar '12

07 Mar '12

Dear all, I need to know which lib of boost were became ANSI/ISO. Yours, Mohsen.

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[Boost.Test] Using boost::exception
by Ovanes Markarian 06 Mar '12

06 Mar '12

Hi! I think it might be a great feature if Boost.Test would be able to print diagnostic information saved in boost::exception. Actually my code havily relies on boost::exception. If one of my tests fail, I usually get nothing saying "std::exception occured" error message. But if Boost.Test could just catch boost::exception and print the default diagnostig info it would be a great help. Best Regards, Ovanes

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Complex serach and replace in C++ string
by Claude 06 Mar '12

06 Mar '12

Hi! Is it possible search and replace or delete a character in a piece of string delimited by 2 positions found by the method find() (find() return position (size_t) and not an iterator) using some function of boost? -- View this message in context: http://boost.2283326.n4.nabble.com/Complex-serach-and-replace-in-C-string-t… Sent from the Boost - Users mailing list archive at Nabble.com.

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Graphviz file I/O (UNCLASSIFIED)
by Neiderer, Andrew M CIV (US) 06 Mar '12

06 Mar '12

Classification: UNCLASSIFIED Caveats: NONE I try but have difficulty with compile/translate, execution errors :-( But maybe with use. I am trying to r/w Graphviz files. The following is result of "write_graphviz(std::cout,g,dp,std::string("id"));" Could someone tell me how/what to correct. Thank you. Classification: UNCLASSIFIED Caveats: NONE

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Filesystem Library Bug
by Sam Hertz 06 Mar '12

06 Mar '12

Hi, I am having some trouble with the latest version of the Boost Filesystem library. The following causes a segmentation fault: boost::filesystem::create_directory(boost::filesystem::current_path()/"test"); boost::filesystem::remove_all(boost::filesystem::current_path()/"test"); It is difficult for me to debug since the call to remove_all dives into a library file. My system configuration is: Operating System: Ubuntu 11.10 Compiler: clang++ (I can reproduce the error with g++) Boost Version: 1.49.0 (compiled with clang++) Thanks, Sam

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Graphviz I/O (UNCLASSIFIED)
by Neiderer, Andrew M CIV (US) 06 Mar '12

06 Mar '12

Classification: UNCLASSIFIED Caveats: NONE New and struggling with BGL, which IMO the best for graphs. I will keep at it. This should be a simple fix for r/w Graphviz example by Douglas Gregor... The errors in the typescript (attached) are the result of "write_graphviz(std::cout,g,dp,std::string("id"));" Could someone tell me how/what to correct. Thank you. Classification: UNCLASSIFIED Caveats: NONE

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