Question

Example: I want to do this:

METHODNAME(5) {
    // do something 
}

which results in:

- (void)animationStep5 {
    // do something 
}

Is there any way to do this? Basically, what I need is a way to generate a real source code string before the program is compiled, so the compiler does see - (void)animationStep5…

Or maybe there’s something different than a macro, which can help here to auto-generate method names (not at run-time)?

Answer 1

You can use the concatenation operator

#define METHODNAME(i) -(void)animationStep##i

you can call it like

METHODNAME(5){}

This expands to
-(void)animationStep5{}