"Michael Goldshteyn" <mgoldshteyn@comcast.net> wrote
Well, a one or two line comment in its header file (implicit_cast.hpp), at the very least, describing what it does wouldn't be too much to ask, in my opinion.
Seriously Its best to leave implicit_cast alone. The reason its not documented is because if it was bad things would happen. Its like those what were they - japanese pictures ? where the artist deliberately made one mistake. Without that everything in the boost distro would be perfect and thats asking for trouble. Thats why its seriously best to leave it alone. If any one wants to know what it does, I have knocked this slice of code together to explain that it actually does nothing at all.. #include <boost/implicit_cast.hpp> template <typename T> struct value_typeA{ T val; template <typename T1> explicit value_typeA( T1 const & t) : val((t)){} }; template <typename T> struct value_typeB{ T val; template <typename T1> explicit value_typeB( T1 const & t) : val(boost::implicit_cast<T>(t)){} }; int main() { value_typeA<double> vA0(1); value_typeA<value_typeA<double> >vA1(vA0); value_typeA<value_typeA<double> >vA2(1); value_typeB<double> vB0(1); value_typeB<value_typeB<double> >vB1(vB0); value_typeB<value_typeB<double> >vB2(1); } regards Andy Little