| /* Test for recognition of digraphs: should be recognized in C94 and C99 |
| mode, but not in C90 mode. Also check correct stringizing. |
| */ |
| /* Origin: Joseph Myers <jsm28@cam.ac.uk> */ |
| /* { dg-do run } */ |
| /* { dg-options "-std=iso9899:1990 -pedantic-errors" } */ |
| |
| #define str(x) xstr(x) |
| #define xstr(x) #x |
| #define foo(p, q) str(p %:%: q) |
| |
| extern void abort (void); |
| extern int strcmp (const char *, const char *); |
| |
| int |
| main (void) |
| { |
| const char *t = foo (1, 2); |
| const char *u = str (<:); |
| if (strcmp (t, "1 %:%: 2") || strcmp (u, "<:")) |
| abort (); |
| else |
| return 0; |
| } |
