Hi Stephen ! On Monday 29 December 2008, Stephen wrote:
Trying to port a mac program onto windows. I've been having some trouble getting the boost portion of it to work. It appears to run fine in release mode*, but crashes when debugged. Below is an excised piece of code that seems to replicate the problem, and works perfectly in release mode but crashes when debugging.
This seems to be a build issue on your side.
I'm using Code::Blocks under XP, with Boost 1.37 with Mingw 3.4.5 (linking to boost_system-mgw34-mt-1_37.lib and boost_filesystem-mgw34-mt-1_37.lib )
Also in debug mode ? I've tried to reproduce your problem with Boost Trunk and inofficial (or experimental) mingw-4.3.2-tdm2 from http://www.tdragon.net/recentgcc/ and it does work. Please find a sample project using bjam and Boost.Test attached. It would be great if you could test this with your setup. I've looked at the regression test but no-one seems to be running mingw-3.4.x tests continuously (some stalled on trunk, none on release)
(Also: It doesn't crash when I run it in windows 95 compatibility mode, but that's not really an option because that completely breaks the program it's meant to be a part of).
This is another sign for build misconfiguration.
Doing a similar build in Visual C++ 2008 with msvc builds of the library, I get the error
Unhandled exception at 0x7c812aeb in filesystest.exe: Microsoft C++ exception: boost::exception_detail::clone_impl<boost::exception_detail::error_in fo_injector<boost::filesystem::basic_filesystem_error<boost::filesyste m::basic_path<std::basic_string<char,std::char_traits<char>,std::alloc ator<char>
,boost::filesystem::path_traits> > at memory location 0x0012fb34..
whether I run a debug build or not.
That's is the constructor throwing an exception when setting up with an invalid path. Try to catch it. Using fs::path p("bla"); your example throws: unknown location(0): fatal error in "filesystem": std::runtime_error: boost::filesystem::basic_directory_iterator constructor: The system cannot find the path specified: "bla" unknown location(0): fatal error in "filesystem": std::runtime_error: boost::filesystem::basic_directory_iterator constructor: The system cannot find the path specified: "bla" at least with mingw-4.3.2
Compiling with the debug builds of the libraries (X-mgw34-mt-d-1_37.lib) didn't produce significantly-different looking other errors from the ones above.
interesting.
Someone on the internet ( http://forums.codeblocks.org/index.php/topic,8429.msg64317.html#msg64 317 ) seemed to have a similar problem, but his solution isn't satisfactory for me (for the reason given below). Linking to single-threaded builds of boost didn't seem to make a difference either.
Any help with this would be really appreciated.
My last guess would be static vs. dynamic runtime libraries... Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! Ingenieurgesellschaft für * voice: ++49 511 262926 57 ! Verkehrs- und Eisenbahnwesen mbH * fax : ++49 511 262926 99 ! Lister Straße 15 * juergen.hunold@ivembh.de ! www.ivembh.de * * Geschäftsführer: ! Sitz des Unternehmens: Hannover * Prof. Dr.-Ing. Thomas Siefer ! Amtsgericht Hannover, HRB 56965 * PD Dr.-Ing. Alfons Radtke !