Syntax |
 |
while (expression) statement
do statement while (expression);
for ([expression1] ; [expression2]; [expression3])
statement
Description |
|
You use looping statements to force a program to repeatedly
execute a statement. The executed statement is called the loop
body. Loops execute until the control is satisfied. The controlling
expression may be any scalar data type.
C has several looping statements: “while ”, “do...while ”,
and “for ”. The main
difference between these statements is the point at which each loop
tests for the exit condition. Refer to the “goto ”, “continue ”, and “break ” statements for ways to exit a loop without reaching
its end or meeting loop exit tests.
Examples |
|
These three loops all accomplish the same thing (they assign i to a[i] for i from 0 to 4):
i = 0;
while (i < 5)
{
a[i] = i;
i++;
}
i = 0;
do
{
a[i] = i;
i++;
} while (i < 5);
for (i = 0; i < 5; i++)
{
a[i] = i;
}
