LinalgBackendBase.h

class LinalgBackendBase
{
public:
	/**
	* Wrapper method that computes mean of SGVectors and SGMatrices.
	*
	* @see linalg::mean
	*/
	#define BACKEND_GENERIC_COMPLEX_MEAN(Type, Container) \
	virtual typename std::enable_if<std::is_same<Type, complex128_t>::type, complex128_t>::type \
	mean_test(const Container<Type>& a) const \
	{  \
		SG_SNOTIMPLEMENTED; \
	}
	BACKEND_GENERIC_COMPLEX_MEAN(int8_t, SGVector)
	#undef BACKEND_GENERIC_COMPLEX_MEAN
}
	
	

LinalgNameSpace.h

template<typename T, template <typename> class Container>
typename std::enable_if<std::is_same<T, complex128_t>::type, complex128_t>::type
mean_test(const Container<T>& a)
{
	REQUIRE(a.size() > 0, "Vector/Matrix cannot be empty!\n");
	return infer_backend(a)->mean(a);
}

template <typename T, template <typename> class Container>
typename std::enable_if<!std::is_same<T, complex128_t>::type, complex128_t>::type
mean_test(const Container<T>& a)
{
	REQUIRE(a.size() > 0, "Vector/Matrix cannot be empty!\n");
	return infer_backend(a)->mean(a);
}