std::get(std::pair)

 

C++

言語

コンセプト

ユーティリティライブラリ

ストリングスライブラリ

コンテナライブラリ

アルゴリズムライブラリ

イテレータライブラリ

ニューメリックスライブラリ

入力/出力ライブラリ

ローカライゼーションライブラリ

正規表現ライブラリ (C++11)

アトミック操作ライブラリ (C++11)

スレッドのサポートライブラリ (C++11)

 

ユーティリティライブラリ

支援を入力します (basic types, RTTI, type traits)

動的なメモリ管理

エラー処理

プログラムユーティリティ

可変個引数関数

日付と時刻

関数オブジェクト

initializer_list (C++11)

bitset

hash (C++11)

関係演算子 Original: Relational operators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

ペアとタプル Original: Pairs and tuples The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

フォワード、スワップ、および移動 Original: Swap, forward and move The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

swap

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

std::pair

メンバ関数 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.

pair::pair

pair::operator=

pair::swap

非メンバ関数 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.

make_pair

operator= operator!= operator< operator<= operator> operator>=

std::swap

get (C++11)

ヘルパークラス 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 (C++11)

tuple_element (C++11)

 

template< size_t N, class T1, class T2 > typename std::tuple_element<I, std::pair<T1,T2> >::type&     get( pair<T1, T2>& p );	(1)	(C + + 11以来)
template< size_t N, class T1, class T2 > const typename std::tuple_element<I, std::pair<T1,T2> >::type&     get( const pair<T1,T2>& p );	(2)	(C + + 11以来)
template< size_t N, class T1, class T2 > typename std::tuple_element<I, std::pair<T1,T2> >::type&&     get( std::pair<T1,T2>&& p );	(3)	(C + + 11以来)

タプルのようなインターフェイスを使用してペアから要素を抽出.

Original:

Extracts a element from the pair using tuple-like interface.

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

パラメータ

p

-

その内容を抽出するためのペア Original: pair whose contents to extract The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

値を返します

1-2)

戻りp.firstN==0とp.secondN==1、IF.

Original:

Returns p.first if N==0 and p.second if N==1.

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

3)

戻りstd::forward<T1&&>(p.first)場合N==0とstd::forward<T2&&>(p.second)N==1場合

Original:

Returns std::forward<T1&&>(p.first) if N==0 and std::forward<T2&&>(p.second) if N==1

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

例外

1-3)

noexcept specification:  

noexcept

  (C + + 11以来)

例

#include <iostream>
#include <utility>
 
int main()
{
    auto p = std::make_pair(1, 3.14);
    std::cout << '(' << std::get<0>(p) << ", " << std::get<1>(p) << ')' << std::endl;
}

Output:

(1, 3.14)

も参照してください

std::get(std::tuple)	タプルは、指定された要素にアクセスします Original: tuple accesses specified element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート)
std::get(std::array)	accesses an element of an array (関数テンプレート)