template<typename T, typename = std::bool_constant<true>>
struct tt::is_complex_of_fundamental< T, typename >
Determines if a type T is a std::complex of a fundamental type, is a std::true_type if so, and otherwise is a std::false_type
static_assert(tt::is_complex_of_fundamental_v<std::complex<double>>,
"Failed testing is_complex_of_fundamental");
static_assert(tt::is_complex_of_fundamental_v<std::complex<int>>,
"Failed testing is_complex_of_fundamental");
static_assert(not tt::is_complex_of_fundamental_v<double>,
"Failed testing is_complex_of_fundamental");
static_assert(not tt::is_complex_of_fundamental_v<std::complex<DataVector>>,
"Failed testing is_complex_of_fundamental");
static_assert(not tt::is_complex_of_fundamental_v<DataVector>,
"Failed testing is_complex_of_fundamental");