[Boost-bugs] [Boost C++ Libraries] #4212: MSVC9.0: warning C4244 in regex_format.hpp(387) under 64-bit (x64)

Subject: [Boost-bugs] [Boost C++ Libraries] #4212: MSVC9.0: warning C4244 in regex_format.hpp(387) under 64-bit (x64)
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-05-13 07:31:18

#4212: MSVC9.0: warning C4244 in regex_format.hpp(387) under 64-bit (x64)
--------------------------------------+-------------------------------------
 Reporter:  davidjward30@…            |       Owner:  johnmaddock
     Type:  Bugs                      |      Status:  new        
Milestone:  Boost 1.43.0              |   Component:  regex      
  Version:  Boost 1.44.0              |    Severity:  Problem    
 Keywords:                            |  
--------------------------------------+-------------------------------------
 boost_1_42_0\boost\regex\v4\regex_format.hpp(387) : warning C4244:
 'initializing' : conversion from '__int64' to 'int', possible loss of data

 This is a warning under x64 compilation, where sizeof(size_t) !=
 sizeof(int)

   int max_len = m_end - m_position;

 Possibly max_len should be of type size_t or probably more stricty a
 typedef like

 iterator_traits<Iterator>::difference_type


 Similar warnings in other places:
 boost_1_42_0\boost\regex\v4\regex_format.hpp(450) : warning C4267:
 'argument' : conversion from 'size_t' to 'int', possible loss of data

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4212>
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