regina::HasReturnType< T > Class Template Reference

Internal to ReturnsTraits. More...

#include <utilities/registryutils.h>

Public Types
enum	{ value = (sizeof(test<T>(0)) == sizeof(yes)) }

Detailed Description

template<typename T>
class regina::HasReturnType< T >

Internal to ReturnsTraits.

This class is used to detect at compile time whether the type T::ReturnType exists.

If T::ReturnType exists, the enum constant HasReturnType<T>::value will be non-zero (i.e., true). Otherwise HasReturnType<T>::value will be zero (i.e., false).

Member Enumeration Documentation

anonymous enum

template<typename T >

anonymous enum

Enumerator
value	Evaluates to non-zero (true) or zero (false) according to whether or not the type T::ReturnType exists.

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The documentation for this class was generated from the following file:

• utilities/registryutils.h