The while
statement evaluates an expression and executes the loop body until
the expression evaluates to false.
Syntax |
 |
while (expression)
statement |
Description |
|
The controlling expression is evaluated at run time. If the
controlling expression has a nonzero value, the loop body is executed.
Then control passes back to the evaluation of the controlling expression.
If the controlling expression evaluates to 0, control passes to
the statement following the loop body. The test for 0 is performed
before the loop body is executed. The loop body of a while
statement with a controlling constant expression that evaluates
to 0 never executes.
Example |
|
For example:
i = 0;
while (i < 3) {
func (i);
i++;
} |
The example shown above calls the function func
three times, with the argument values of 0, 1, and 2.
