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do-while loop

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C++
 
Langage C++
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boucle while
boucle do-while
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Original:
Casts
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Exécute une boucle .
Original:
Executes a loop.
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Utilisé lorsque le code doit être exécuté plusieurs fois tant qu'une condition est présente. le code est exécuté au moins une fois .
Original:
Used where code needs to be executed several times while some condition is present. the code is executed at least once.
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Sommaire

[modifier] Syntaxe

do loop_statement while ( cond_expression )

[modifier] Explication

cond_expression doit être une expression dont le résultat est convertible en bool. Il est évalué après chaque exécution de loop_statement. La boucle continue l'exécution que si la cond_expression évalue à true .
Original:
cond_expression shall be an expression, whose result is convertible to bool. It is evaluated after each execution of loop_statement. The loop continues execution only if the cond_expression evaluates to true.
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Si l'exécution de la boucle doit être mis fin à un certain moment, <div class="t-tr-text"> instruction break
Original:
break statement
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peut être utilisé comme terminaison déclaration .
Original:
If the execution of the loop needs to be terminated at some point,
instruction break
Original:
break statement
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</div> can be used as terminating statement.
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Si l'exécution de la boucle doit être poursuivie à la fin de la boucle, <div class="t-tr-text"> instruction continue
Original:
continue statement
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peut être utilisé comme raccourci .
Original:
If the execution of the loop needs to be continued at the end of the loop body,
instruction continue
Original:
continue statement
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</div> can be used as shortcut.
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[modifier] Mots-clés

do, while

[modifier] Exemple

#include <iostream>
 
int main()
{
    int i = 0;
    do i++;
    while (i < 10);
 
    std::cout << i << '\n';
 
    i = 11;
    do i = i + 10;
    while (i < 10); //the code is executed even if the condition is false before the loop
 
    std::cout << i << '\n';
 
    int j = 2;
    do {
        j += 2;
        std::cout << j << " ";
    } while (j < 9);
}

Résultat : 

10
21
4 6 8 10
Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/language/do&oldid=48506 »