Re: [Boost-users] lexical_cast and float

I use this code to control if a sdt::string is a "float" value:

string value("3.14"); try {  lexical_cast<float>(value); } catch(bad_lexical_cast& ) {  cout<<value<<" is not a float number\n"; }

I always obtain a bad_lexical_cast exception.

Perhaps, your locale requires comma as fp: "3,14"