( std::is_floating_point<const double>::value ); # undef REF } { # define REF(x) << #x " ?: " << x << '\n' std::cout << std::boolalpha REF( std::is_floating_point_v<int> ) REF( std::is_floating_point_v<float> ) REF( std::is_floating_point_v<const double> )...
#include <iostream> #include <type_traits> class A {}; int main() { std::cout << std::boolalpha; std::cout << std::is_floating_point<A>::value << '\n'; std::cout << std::is_floating_point<float>::value << '\n'; std::cout << std::is_floating_point<float&>::value...
如果程序添加了 std::is_floating_point 或std::is_floating_point_v 的特化,那么行为未定义。 模板形参T - 要检查的类型 辅助变量模板template< class T > constexpr bool is_floating_point_v = is_floating_point<T>::value; (C++17 起) 继承...
std::is_void std::is_null_pointer std::is_array std::is_pointer std::is_enum std::is_union std::is_class std::is_function std::is_object std::is_scalar std::is_compound std::is_floating_point std::is_fundamental std::is_arithmetic std::is_reference std::is_lvalue_reference std...
Tensors and Dynamic neural networks in Python with strong GPU acceleration - Remove is_reduced_floating_point from namespace std · pytorch/pytorch@98bf653
template <typename T>void t_check(T) { std::cout << "T is float: " << std::boolalpha << std::is_same<T, float>::value << std::endl; std::cout << "T is double: " << std::boolalpha << std::is_same<T, double>::value << std::endl; ...
#include <iostream>#include <type_traits>classA{};intmain(){std::cout<<std::boolalpha;std::cout<<std::is_floating_point<A>::value<<'\n';std::cout<<std::is_floating_point<float>::value<<'\n';std::cout<<std::is_floating_point<int>::value<<'\n';} ...
std::is_floating_pointis aUnaryTypeTrait. Checks whetherTis a floating-point type. Provides the member constantvaluewhich is equal totrue, ifTis the typefloat,double,longdouble, or any extended floating-point types (std::float16_t,std::float32_t,std::float64_t,std::float128_t, orstd:...
#include <iostream>#include <type_traits>classA{};intmain(){std::cout<<std::boolalpha;std::cout<<std::is_floating_point<A>::value<<'\n';std::cout<<std::is_floating_point<float>::value<<'\n';std::cout<<std::is_floating_point<int>::value<<'\n';} ...