Question

Possible Duplicate:
Is “for(;;)” faster than “while (TRUE)”? If not, why do people use it?

I would like to know which infinite loop is more preferable:

for(;;) {
    // Do some stuff
}

or

#define TRUE 1

while(TRUE) {
    // Do some stuff
}

Is there any difference between them from the performance point of view?

What is more preferable from coding standards point of view?

Answer 1

From a performance point of view it doesn’t matter. The compiler will optimize both into the same assembly code. From a “coding standards” point of view, for(;;) is more terse, which is nice. Although while(TRUE) is a bit clearer, for(;;) is so common that clarity in this case is not much of an issue (in fact, the ubiquity of for(;;) may make it more clear than the while version).