std::list::empty
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bool empty() const; |
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Comprueba si el contenedor no tiene elementos, es decir, si begin() == end() .
Original:
Checks if the container has no elements, i.e. whether begin() == end().
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Contenido |
[editar] Parámetros
(Ninguno)
Original:
(none)
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[editar] Valor de retorno
true si el recipiente está vacío, false lo contrario
Original:
true if the container is empty, false otherwise
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[editar] Excepciones
[editar] Complejidad
Constant
Original:
Constant
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[editar] Ejemplo
El código siguiente utiliza
empty
para comprobar si un std::list<int> contiene elementos:
Original:
The following code uses
empty
to check if a std::list<int> contains any elements:
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Salida:
Initially, numbers.empty(): 1 After adding elements, numbers.empty(): 0
See also
devuelve el número de elementos Original: returns the number of elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función miembro público) |