20010114-1.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

/* Origin: PR c/166 from Joerg Czeranski <[e-mail]>.  */
/* In the declaration of proc, x cannot be parsed as a typedef name,
   so it must be parsed as a parameter name.  */
typedef int x;
void proc(int (*x)(void)) {}