[boost] Wanted addition to type_traits: is_complex

From: Neal D. Becker (nbecker_at_[hidden])
Date: 2003-10-01 07:44:05

A nice addition to type_traits would be: is_complex.

I'm not sure how to use add it in the current framework of type_traits.  A 
simple native implementation could be something like:

template<typename T>
struct IsCmplx {
  static const bool Yes = false;
};

template<typename FLT>
struct IsCmplx<std::complex<FLT> > {
  static const bool Yes = true;
};