Re: [boost] [thread] Lots of warings on MingW32?

From: Anthony Williams (anthony_w.geo_at_[hidden])
Date: 2007-10-19 11:31:41

"John Maddock" <john_at_[hidden]> writes:

> I'm getting lots of warnings of the kind:
>
> ../../../boost/thread/win32/basic_timed_mutex.hpp: In member function `void 
> boost::detail::basic_timed_mutex::unlock()':
> ../../../boost/thread/win32/basic_timed_mutex.hpp:116: warning: integer 
> overflow in expression
>
>>From gcc-mingw when using the new Boost.Thread, should I be concerned?

No. It's just that the lock mask is 0x80000000, so it's a boundary value when
negating. The result should be right, though. Anyway, I've recoded to remove
the warning.

> Also from VC++ I see:
>
> ..\..\..\boost/thread/thread_time.hpp(33) : warning C4244: 'return' : 
> conversion from '__int64' to 'unsigned int', possible loss of data
> ..\..\..\boost/thread/xtime.hpp(60) : warning C4244: '=' : conversion from 
> '__int64' to 'boost::xtime::xtime_nsec_t', possible loss of data
>
> Which are rather annoying,

I've committed some fixes which should remove the warnings.

Anthony
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