ProperDblFromCmpl.hh

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#ifndef NPSTAT_PROPERDBLFROMCMPL_HH_
#define NPSTAT_PROPERDBLFROMCMPL_HH_
 
/*!
// \file ProperDblFromCmpl.hh
//
// \brief Compile-time deduction of the underlying floating point type from
//        the given complex type
//
// Author: I. Volobouev
//
// January 2012
*/
 
#include <complex>
 
namespace npstat {
    template <class T>
    struct ProperDblFromCmpl
    {
        typedef double type;
    };
 
    template <class T>
    struct ProperDblFromCmpl<std::complex<T> >
    {
        typedef T type;
    };
 
    template <class T>
    struct ProperDblFromCmpl<const std::complex<T> >
    {
        typedef T type;
    };
 
    template <class T>
    struct ProperDblFromCmpl<volatile std::complex<T> >
    {
        typedef T type;
    };
 
    template <class T>
    struct ProperDblFromCmpl<const volatile std::complex<T> >
    {
        typedef T type;
    };
}
 
#endif // NPSTAT_PROPERDBLFROMCMPL_HH_