Opened 19 months ago

Closed 2 months ago

#11842 closed Bugs (fixed)

VC 2005 warning "conversion from '__w64 int' to streamsize" when lexical_cast from string to double.

Reported by: l_ting@… Owned by: apolukhin
Milestone: Boost 1.64.0 Component: lexical_cast
Version: Boost 1.59.0 Severity: Problem
Keywords: Cc:


Symptom: When cast to double as follows:

double d = boost::lexical_cast<double>("123.4");;

boost 1.59.0 has the following warning when compile on Visual studio 2005 platform under Unicode.

1>c:\boost-v1.59.0\include\boost-1_59\boost\lexical_cast\detail\converter_lexical_streams.hpp(587) : warning C4244: 'argument' : conversion from 'w64 int' to 'boost::detail::basic_pointerbuf<charT,BufferT>::streamsize', possible loss of data

Fix: Change line 586@ boost\lexical_cast\detail\converter_lexical_streams.hpp

From: buf.setbuf(const_cast<CharT*>(start), finish - start); To: buf.setbuf(const_cast<CharT*>(start), static_cast<std::streamsize>(finish - start));

Please review. Thanks


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Change History (2)

comment:1 Changed 5 months ago by apolukhin

  • Milestone changed from To Be Determined to Boost 1.64.0
  • Status changed from new to assigned

Fixed in d53933cd develop branch. Will be merged to master as soon as all the tests will cycle.

comment:2 Changed 2 months ago by apolukhin

  • Resolution set to fixed
  • Status changed from assigned to closed

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