for loop
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Esegue un ciclo.
Original:
Executes a loop.
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Usato come un equivalente più leggibile di
ciclo while
.Original:
while loop
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Original:
Used as a more readable equivalent of
ciclo while
.Original:
while loop
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Sintassi
for ( init_expression ; cond_expression ; iteration_expression ) loop_statement
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Spiegazione
La sintassi di cui sopra produce codice equivalente a:
Original:
The above syntax produces code equivalent to:
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{
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Il init_expression viene eseguito prima dell'esecuzione del ciclo. Il cond_expression valuta al valore, trasformabile in
bool. Viene valutata prima di ogni iterazione del ciclo. Il ciclo continua solo se il suo valore è true. Il loop_statement viene eseguito ad ogni iterazione, dopo di che viene eseguito iteration_expression.Original:
The init_expression is executed before the execution of the loop. The cond_expression shall evaluate to value, convertible to
bool. It is evaluated before each iteration of the loop. The loop continues only if its value is true. The loop_statement is executed on each iteration, after which iteration_expression is executed.The text has been machine-translated via Google Translate.
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Se l'esecuzione del ciclo deve essere terminato ad un certo punto,
Istruzione break
può essere utilizzato come terminale dichiarazione. Original:
break statement
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Original:
If the execution of the loop needs to be terminated at some point,
Istruzione break
can be used as terminating statement. Original:
break statement
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Se l'esecuzione del ciclo deve essere continuata alla fine del corpo del ciclo,
Istruzione continue
può essere utilizzato come collegamento.Original:
continue statement
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Original:
If the execution of the loop needs to be continued at the end of the loop body,
Istruzione continue
can be used as shortcut.Original:
continue statement
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Parole chiave
Esempio
Nell'esempio riportato di seguito viene illustrato l'utilizzo del 'di' loop in una gestione di array
Original:
The following example demonstrates the usage of the for loop in an array manipulation
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#include <stdio.h>
#include <stdlib.h>
#define SIZE 8
int main (int argc, char **argv)
{
unsigned i = 0, array [SIZE];
for( ; i < SIZE; ++i)
array [i] = random() % 2;
printf("Array filled!\n");
for (i = 0; i < SIZE; ++i)
printf("%d ", array[i]);
printf("\n");
return EXIT_SUCCESS;
}
Output:
Array filled!
1 0 1 1 1 1 0 0