Patrick Mézard wrote:
The last line of the following program throws a bad_lexical_cast exception. The code is compiled with VC7.1.
//********************************************************** #include <limits> #include <iostream> #include <boost/lexical_cast.hpp>
int main(int argc, char* argv[]) { double d = std::numeric_limits<double>::infinity(); std::string s = boost::lexical_cast<std::string>(d); std::cout<<d<<", "<<s<<std::endl;
//Throws bad_lexical_cast boost::lexical_cast<double>(s); } //**********************************************************
The output is:
"1.#INF, 1.#INF"
Am I doing something wrong ?
Textual representations of infinities and NaNs are not specified in the C++ standard or the C90 standard which it references (though they are in C99). So there is unfortunately no guarantee that you can successfully convert them to and from strings. Ben.