> C absolutely guarantees that the second will NEVER be evaluated before
> the first. Otherwise, things like this:
>
> if ( ptr && ptr->field )
>
> could fail if ptr was NULL.
In your example yes. But is there a problem if the two conditions are
independent ? for eg..
foo() {
....
a = 0;
b = my_complex_function_call();
if (b && a) {
/* Do some non-trivial stuff */
} else {
printf("I'm an intelligent compiler\n");
}
.....
}
Does C guarantee that even in this case it won't be reordered and not
optimized ?
--
Thanks -
Manish
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