5.2.15 while

Syntax:

while (boolean_expression) block

Purpose:

repetitive, conditional execution of block.
The boolean_expression is evaluated and if its value is TRUE, the block gets executed. This is repeated until boolean_expression evaluates to FALSE. The command break leaves the innermost while construction.

Example:

int i = 9; while (i>0) { // ... // do something for i=9, 8, ..., 1 i = i - 1; } while (1) { // ... // do something forever if (i == -5) // but leave the loop if i is -5 { break; } }