std::tuple_size(std::array)

 

C++

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Recipientes biblioteca

array (C++11)

vector

deque

forward_list (C++11)

list

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std::array

Funções de membro 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.

acesso. Elemento 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

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

Capacidade 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

Não-membros funções 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

Classes auxiliares 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

 

Definido no cabeçalho <array>
template<class T, size_t N > class tuple_size< array<T, N>>:     public integral_constant<size_t, N> {};	(1)	(desde C++11)

Permite o acesso ao número de elementos de um std::array como uma expressão constante de tempo de compilação.

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.

Herdado de std::integral_constant

Member constants

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

Member functions

operator std::size_t	converte o objeto em std::size_t, retorna 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. (função pública membro)

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>

Exemplo

#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);}

Saída:

3

Veja também

tuple_size	obtém o tamanho de tuple em tempo de compilação 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. (especialização modelo. classe)