[Boost-bugs] [Boost C++ Libraries] #4327: warning C4244: conversion from '__int64' to 'long', possible loss of data

Subject: [Boost-bugs] [Boost C++ Libraries] #4327: warning C4244: conversion from '__int64' to 'long', possible loss of data
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2010-06-09 18:02:37

#4327: warning C4244: conversion from '__int64' to 'long', possible loss of data
-------------------------------------+--------------------------------------
 Reporter:  viboes                   |       Owner:  anthonyw
     Type:  Bugs                     |      Status:  new     
Milestone:  Boost 1.44.0             |   Component:  thread  
  Version:  Boost Development Trunk  |    Severity:  Problem 
 Keywords:                           |  
-------------------------------------+--------------------------------------
 The following warning appears on msvc-9.0express:

 {{{
 compile-c-c++
 ..\..\..\bin.v2\libs\thread\test\test_condition_notify_one.test\msvc-9.0express\debug
 \threading-multi\test_condition_notify_one.obj
 test_condition_notify_one.cpp
 C:\cygwin\boost\trunk\boost/thread/win32/thread_data.hpp(171) : warning
 C4244: 'argument' : conversion from '__int64' to 'long', possible loss of
 data
         test_condition_notify_one.cpp(116) : see reference to function
 template instantiation 'void
 boost::this_thread::sleep<boost::date_time::subsecond_duration<base_duration,frac_of_second>>(const
 TimeDuration &)' being compiled
         with
         [
             base_duration=boost::posix_time::time_duration,
             frac_of_second=0x03e8,
 TimeDuration=boost::date_time::subsecond_duration<boost::posix_time::time_duration,0x03e8>
         ]
 }}}


 The context is the call to pin_to_zero when the duration is stored on
 something larger than a long.


 {{{
         template<typename TimeDuration>
         inline void sleep(TimeDuration const& rel_time)
         {
 interruptible_wait(detail::pin_to_zero(rel_time.total_milliseconds()));
         }
 }}}

 I guest that we need another pin_to_zero overloading or making the
 pin_to_zero generic.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/4327>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.