[Boost-bugs] [Boost C++ Libraries] #4055: msvc C4244 warning in boost/iostreams/detail/buffer.hpp(151).

Subject: [Boost-bugs] [Boost C++ Libraries] #4055: msvc C4244 warning in boost/iostreams/detail/buffer.hpp(151).
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-03-31 09:43:44

#4055: msvc C4244 warning in boost/iostreams/detail/buffer.hpp(151).
----------------------------+-----------------------------------------------
 Reporter:  pluto@…         |       Owner:  turkanis 
     Type:  Bugs            |      Status:  new      
Milestone:  Boost 1.43.0    |   Component:  iostreams
  Version:  Boost 1.42.0    |    Severity:  Problem  
 Keywords:                  |  
----------------------------+-----------------------------------------------
 hi,

 the boost.iostream compilation with stlport-5.2.1 produces a warning:
 {{{
 boost_1_42_0/boost/iostreams/detail/buffer.hpp(151) : warning C4244:
 'argument' : conversion from 'stlp_std::streamsize' to
 'stlp_std::allocator<_Tp>::size_type', possible loss of data
 }}}
 the streamsize definition from preprocessed stlport char_traits:
 {{{
 //The Win32 file io API support 64 bits access so streamoff and streamsize
 //has to reflect that. Do not change the stringbuf behavior.
 typedef __int64 streamoff;

 typedef streamoff streamsize;
 }}}
 passing __int64 data for size_t argument on win32 doesn't look good.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4055>
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