[Beman Dawes]
A build of 1.47.0 using VC++10.0 is producing warnings from only a few libraries. It would be great if these were cleared so that this popular compiler builds Boost without warnings at the default settings.
libs\iostreams\src\file_descriptor.cpp(265) : warning C4244: 'argument' : conversion from 'std::streamsize' to 'DWORD', possible loss of data libs\iostreams\src\file_descriptor.cpp(281) : warning C4244: 'argument' : conversion from 'std::streamsize' to 'DWORD', possible loss of data
These warnings are being emitted by VC10 because std::streamsize is now unconditionally 64-bit, for large file support. (Inevitably, we missed one tiny thing in VC10 so large files aren't supported perfectly everywhere - but it's much better than VC9 and already fixed in VC11.) Stephan T. Lavavej Visual C++ Libraries Developer