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Red Hat Bugzilla – Attachment 596238 Details for
Bug 837650
Incorrect result from boost::lexical_cast< double > when running with valgrind
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Simple program to reproduce the problem
lexical_cast.cpp (text/x-c++src), 587 bytes, created by
Slawomir Czarko
on 2012-07-04 15:08:10 UTC
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Description:
Simple program to reproduce the problem
Filename:
MIME Type:
Creator:
Slawomir Czarko
Created:
2012-07-04 15:08:10 UTC
Size:
587 bytes
patch
obsolete
>#include <boost/lexical_cast.hpp> > >#include <iomanip> >#include <iostream> >#include <string> > >int main() >{ > const std::string foo( "8589.9345900000008" ); > > // print input string > std::cout << foo << std::endl; > > // use lexical_cast< double > - returns wrong value with valgrind!! > const double tmp1( boost::lexical_cast< double >( foo ) ); > std::cout << std::setprecision( 17 ) << tmp1 << std::endl; > > // use lexical_cast< long double > > const double tmp2( boost::lexical_cast< long double >( foo ) ); > std::cout << std::setprecision( 17 ) << tmp2 << std::endl; > > return 0; >} >
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bug 837650
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