6 #if defined (__STDC__) && __STDC__
8 #define __CONCAT(x,y) x ## y
11 /* This is not a typedef so `const __ptr_t' does the right thing. */
12 #define __ptr_t void *
16 #define __CONCAT(x,y) x/**/y
17 #define __STRING(x) "x"
19 #define __ptr_t char *