[boost] Re: problem with boost::thread

From: Michael Glassford (glassfordm_at_[hidden])
Date: 2004-06-21 10:49:48

Janusz Piwowarski wrote:
> Hello.
> 
> After latest cvs update, i've got errors like:
> 
> gcc-C++-action
> bin\boost\libs\thread\build\boost_thread.dll\mingw\debug\threading-multi\con
> dition.obj
> In file included from d:/sources/boost/libs/thread/src/condition.cpp:18:
> d:/sources/boost/libs/thread/src/timeconv.inl: In function `void
>    <unnamed>::to_time(int, boost::xtime&)':
> d:/sources/boost/libs/thread/src/timeconv.inl:24: error: template-argument `
>    boost::<anonymous enum>' uses anonymous type
> d:/sources/boost/libs/thread/src/timeconv.inl: In function `void
>    <unnamed>::to_duration(boost::xtime, int&)':
> d:/sources/boost/libs/thread/src/timeconv.inl:92: error: template-argument `
>    boost::<anonymous enum>' uses anonymous type
> d:/sources/boost/libs/thread/src/timeconv.inl: In function `void
>    <unnamed>::to_microduration(const boost::xtime&, int&)':
> d:/sources/boost/libs/thread/src/timeconv.inl:114: error: template-argument
> `
>    boost::<anonymous enum>' uses anonymous type
> 
> 
> 
> 
> 
> 
> "g++"   -c -Wall -ftemplate-depth-100  -DBOOST_THREAD_BUILD_DLL=1  -g -O0 -f
> no-inline -mthreads -mthreads -mno-cygwin   -I"bin\boost\libs\thread\build" 
>  -I"d:\sources\boost"  -o
> "bin\boost\libs\thread\build\boost_thread.dll\mingw\debug\threading-multi\co
> ndition.obj"  "d:\sources\boost\libs\thread\build\../src/condition.cpp"
> 
> 
> Error lines in timeconv.inl file contains:
> 
>     assert(res == boost::TIME_UTC)
> 
> where res is int, and boost::TIME_UTC is enum. When i changed it to
> 
>     assert(res == static_cast<int>(boost::TIME_UTC));
> 
> it starts to compile. But I don't understand what's happend, there aren't
> changes in boost::thread. Any ideas?

As you indicate, the definition of the enum and the actual assertions 
haven't changed in a very long time, so they likely aren't the problem. 
Perhaps the compiler configuration or the definition of assert itself 
changed? I'm not familiar with the compiler, but the error

 > d:/sources/boost/libs/thread/src/timeconv.inl:24:
 > error: template-argument `
 >    boost::<anonymous enum>' uses anonymous type

implies a template-based implementation of assert which doesn't like the 
fact that the enumeration has no name. Have you tried giving it a name 
to see what effect that has?

Mike