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std::stack::top

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< cpp‎ | container‎ | stack

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C++
 
Recipientes biblioteca
 
std :: stack
Funções de membro
Original:
Member functions
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stack::stack
stack::~stack
stack::operator=
acesso. Elemento
Original:
Element access
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stack::top
Capacidade
Original:
Capacity
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stack::empty
stack::size
Modificadores
Original:
Modifiers
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stack::push
stack::emplace
stack::pop
stack::swap
 
reference top();
const_reference top() const;
Retorna referência para o elemento superior na pilha. Este é o elemento mais recentemente empurrado. Este elemento será removido em uma chamada para pop(). Efetivamente chama c.back().
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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Índice

[editar] Parâmetros

(Nenhum)
Original:
(none)
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[editar] Valor de retorno

referência para o último elemento
Original:
reference to the last element
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[editar] Complexidade

Constante
Original:
Constant
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[editar] Veja também

 inserts element at the top
(função pública membro) [edit]
remove o elemento superior
Original:
removes the top element
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(função pública membro) [edit]

[editar] Exemplo

#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;
}

Saída: 

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