while (condition is true/untrue) {
statement;
}
or
while ( condition == true ) {
do something until condition untrue
}
===== while example objective c =====
NSInteger i=0;
while (i < 42) {
i++;
if (i==42) NSLog(@"whoooha ");
}
=== output ===
2012-10-12 00:59:38.184 cppApp[42258:c07] whoooha