Prefer if evaluations [closed]

Question

Which would be the preferred method? With the assuming that myInteger 99.99% of time will have a valid value and this method will get called very rapidly.

-(BOOL)validDate
{
    NSUInteger myInteger = ...//method to obtain value;    
    if (myInteger != NSNotFound)
        return YES;        
    return NO;
}


-(BOOL)validDate
{
    NSUInteger myInteger = ...//method to obtain value;    
    if (myInteger == NSNotFound)
        return NO;        
    return YES;
}

Answer 1

The preferred would be:

- (BOOL)validDate
{
    NSUInteger myInteger = ...//method to obtain value;    

    return (myInteger != NSNotFound);
}

because it doesn't actually need to execute a branch.

Note that the difference will be imperceptibly small unless you are running this code a lot...