Below is an example of a simple while_statement

// This will loop ten times

i=0;

while(i < 10)

     applog("We’re still in the loop since i=",i);

     i++;

endwhile

However any expr can be used – the loop will continue until the expression evaluates to 0 (zero):     

// This will loop forever

while(1)

     applog("Looping forever");

endwhile

Similarly the following will result in an infinite loop and using assignment expressions like this is often the cause of bugs where in fact the comparison_expression was meant.

// a is assigned the value 10 conditional expression, thus 10 is the result of this expression

// so this will loop forever

a=0;

while(a=10)

    applog("Looping forever");

endwhile