std::tuple_size(std::array)

 

C++

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array (C++11)

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std::array

Las funciones miembro 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.

Elemento acceso 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

array::back

array::data

Los iteradores 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

Capacidad 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

array::size

array::max_size

Modificadores 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

array::swap

Terceros funciones 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

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

tuple_size

tuple_element

 

Defined in header <array>
template< class T, size_t N > class tuple_size< array<T, N> > :     public integral_constant<size_t, N> { };	(1)	(desde C++11)

Proporciona acceso al número de elementos en un std::array como una expresión de la constante de tiempo de compilación .

Original:

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

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

value [estático]	N, the number of elements in the array (público miembro constante estática)

Member functions

operator std::size_t	convierte el objeto a std::size_t, devuelve 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. (miembro público función)

Member types

Tipo 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>

Ejemplo

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

Output:

3

Ver también

tuple_size	obtiene el tamaño de tuple en tiempo de compilación 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. (clase de especialización de plantilla)