/* Test for proper disabling of macros within their own expansions.  *//* { dg-do compile } *//* The following is a trick to evaluate a complex boolean expression   at compile time, inspired by autoconf 2.13's sizeof-detection.  */enum { a = 4, f = 3 };#define a1(y) (y+2)#define a2(y) a1(y)+1#define f a+fchar array[(a2(f)) == 10 ? 1 : -1];