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while loop

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Lenguaje C++
Los temas generales
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General topics
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Control de flujo
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Flow control
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Sentencias condicionales ejecución
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Conditional execution statements
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Instrucciones de iteración
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Iteration statements
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while loop
do-while loop
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Functions
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Exceptions
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Tipos
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Types
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decltype specifier (C++11)
Los especificadores
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Inicialización
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Initialization
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Los literales
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representaciones alternativas
Utilidades
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Tipos
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Types
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Lanza
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Clases
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Clase propiedades específicas de la función
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Funciones especiales miembro
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Plantillas
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Varios
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Miscellaneous
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Montaje en línea
 
Ejecuta un bucle .
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Executes a loop.
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Se utiliza cuando el código tiene que ser ejecutado varias veces mientras alguna condición está presente .
Original:
Used where code needs to be executed several times while some condition is present.
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Contenido

[editar] Sintaxis

while ( cond_expression ) loop_statement

[editar] Explicación

cond_expression deberá ser una expresión, cuyo resultado es convertible a bool. Se evalúa antes de cada ejecución de loop_statement, que sólo se ejecuta si la cond_expression evalúa true .
Original:
cond_expression shall be an expression, whose result is convertible to bool. It is evaluated before each execution of loop_statement, which is only executed if the cond_expression evaluates to true.
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se puede utilizar como la terminación de declaración .
Original:
If the execution of the loop needs to be terminated at some point,
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se puede utilizar como acceso directo .
Original:
If the execution of the loop needs to be continued at the end of the loop body,
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[editar] Palabras clave

while

[editar] Ejemplo

#include <iostream>
 
int main()
{
    int i = 0;
    while (i < 10) i++;
 
    std::cout << i << '\n';
 
    int j = 2;
    while (j < 9) {
        std::cout << j << " ";
        j += 2;
    }
}

Output:

10
2 4 6 8