std::tuple_size(std::array)

 

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std::array

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

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

array::at

array::operator[]

array::front

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array::data

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

array::begin array::cbegin

array::end array::cend

array::rbegin array::crbegin

array::rend array::crend

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

array::empty

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

array::fill

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Non-Member-Funktionen Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

get

swap

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tuple_size

tuple_element

 

definiert in Header <array>
template<class T, size_t N > class tuple_size< array<T, N>>:     public integral_constant<size_t, N> {};	(1)	(seit C++11)

Bietet Zugriff auf die Anzahl der Elemente in einem std::array als Compile-Zeit konstanter Ausdruck .

Original:

Provides access to the number of elements in an std::array as a compile-time constant expression.

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Inherited from std::integral_constant

Member constants

value [statisch]	N, the number of elements in the array (public static Mitglied konstanten)

Member functions

operator std::size_t	wandelt das Objekt std::size_t, gibt value Original: converts the object to std::size_t, 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	std::size_t
type	std::integral_constant<std::size_t, value>

Beispiel

#include <iostream>#include <array>   template<class T>void test(T t){int a[std::tuple_size<T>::value];// can be used at compile timestd::cout<<std::tuple_size<T>::value<<'\n';}   int main(){std::array<float, 3> arr; test(arr);}

Output:

3

Siehe auch

tuple_size	erhält die Größe der tuple bei der Kompilierung Original: obtains the size of tuple at compile time The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (class Template-Spezialisierung)