GCC Macros

sci3ntist · 11-26-2007, 05:20 AM

Hi
how can i iterate over macros defined in a make file in c?
like -DMacro1 -DMacor2 ...., the number of macros s variable
or to define the in an external file then iterate over them?
Like this:
while (more_macros) {
Do_Something(curren_macro);
}
thanks

Mara · 11-27-2007, 03:16 PM

You don't use macros with -Dsomething. That simply defines a symbol. Do you plan to do something with the definition in an external program or in the one you compile using that makefile?

Also, note that defines are handled by the preprocessor, not the compiler, so you rather can't use while on defines.