std::is_integral – cppreference.com

Aus cppreference.com

definiert in Header `<type_traits>`

`template< class T > struct is_integral;`		(seit C++11)

Wenn T ein integraler Typ (bool, char, char16_t, char32_t, wchar_t, short, int, long, long long, einschließlich Vorzeichen, ohne Vorzeichen, und cv qualifizierte Varianten) ist, stellt das Mitglied konstanten value gleich true. Für jede andere Art, value ist false .

Original:

If T is an integral type (bool, char, char16_t, char32_t, wchar_t, short, int, long, long long, including any signed, unsigned, and cv-qualified variants), provides the member constant value equal true. For any other type, value is false.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Inherited from std::integral_constant

Member constants


	`true` wenn `T` is an integral type , `false` anders Original: `true` if `T` is an integral type , `false` otherwise The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public static Mitglied konstanten)

Member functions


	wandelt das Objekt `bool`, gibt `value` Original: converts the object to `bool`, returns `value` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion)

Member types


Type Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition

`value_type`	`bool`

`type`	`std::integral_constant<bool, value>`

Beispiel

#include <iostream>
#include <type_traits>

class A {};

int main() 
{
    std::cout << std::boolalpha;
    std::cout << std::is_integral<A>::value << '\n';
    std::cout << std::is_integral<float>::value << '\n';
    std::cout << std::is_integral<int>::value << '\n';
}

Output:

Siehe auch


is_integer [statisch]	identifiziert Integer-Typen Original: identifies integer types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public static Mitglied konstanten of `std::numeric_limits`) [edit]

is_floating_point (C++11)	prüft, ob ein Typ ist Fließkomma-Typ Original: checks if a type is floating-point type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Klassen-Template) [edit]

is_arithmetic (C++11)	prüft, ob ein Typ ist arithmetischen Typ Original: checks if a type is arithmetic type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Klassen-Template) [edit]