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std::stack::top

提供: cppreference.com
< cpp‎ | container‎ | stack

 
 
 
のstd ::スタック
メンバ関数
Original:
Member functions
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stack::stack
stack::~stack
stack::operator=
要素アクセスの循環参照を解除するために使用されている
Original:
Element access
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stack::top
容量
Original:
Capacity
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stack::empty
stack::size
修飾子
Original:
Modifiers
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stack::push
stack::emplace
stack::pop
stack::swap
 
reference top();
const_reference top() const;
スタック内の最上位の要素への参照を返します。これは、最近プッシュされる要素です。この要素は、pop()へのコール時に削除されます。効果的にc.back()呼び出し.
Original:
Returns reference to the top element in the stack. This is the most recently pushed element. This element will be removed on a call to pop(). Effectively calls c.back().
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目次

[編集] パラメータ

(なし)
Original:
(none)
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[編集] 値を返します

最後の要素への参照
Original:
reference to the last element
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[編集] 複雑

定数
Original:
Constant
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[編集] も参照してください

inserts element at the top
(パブリックメンバ関数) [edit]
先頭の要素を削除します
Original:
removes the top element
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(パブリックメンバ関数) [edit]

[編集]

#include <stack>
#include <iostream>
 
int main()
{
    std::stack<int>   s;
 
    s.push( 2 );
    s.push( 6 );
    s.push( 51 );
 
    std::cout << s.size() << " elements on stack\n";
    std::cout << "Top element: "
	      << s.top()         // Leaves element on stack
	      << "\n";
    std::cout << s.size() << " elements on stack\n";
    s.pop();
    std::cout << s.size() << " elements on stack\n";
    std::cout << "Top element: " << s.top() << "\n";
 
    return 0;
}

Output:

3 elements on stack
Top element: 51
3 elements on stack
2 elements on stack
Top element: 6