id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
2295,Inconsistent behavior when using 64 bit integer types,Hrvoje Prgeša <hrvoje.prgesa@…>,nasonov,"1)
Converting 64bit unsigned int to it's max value string representation and back results in exception (should be identity operation!):

{{{
boost::uint64_t max = numeric_limits<boost::uint64_t>::max();
std::string s = lexical_cast<string>(max);
BOOST_CHECK_EQUAL(max, lexical_cast<boost::uint64_t>(s));
// crashes: std::bad_cast: bad lexical cast: source type value could not be interpreted as target
}}}
2) Precise conditions when the conversion will fail are not specified in the documentation. Throwing of bad_lexical_cast is inconsistent:
{{{
#define T short
// add a digit to a min representation!
s = lexical_cast<string, T>(numeric_limits<T>::min()) + ""0"";
BOOST_CHECK_THROW(lexical_cast<T>(s), boost::exception); // throws
s = lexical_cast<string, T>(numeric_limits<T>::min()) + ""5"";
BOOST_CHECK_THROW(lexical_cast<T>(s), boost::exception); // throws

#define T boost::int64_t
s = lexical_cast<string, T>(numeric_limits<T>::min()) + ""0"";
BOOST_CHECK_THROW(lexical_cast<T>(s), boost::exception); // DOES NOT throw!?!?
s = lexical_cast<string, T>(numeric_limits<T>::min()) + ""5"";
BOOST_CHECK_THROW(lexical_cast<T>(s), boost::exception); // throws  
}}}
",Bugs,closed,To Be Determined,lexical_cast,Boost 1.36.0,Problem,fixed,lexical_cast 64 uint64_t int64_t,