1 /* Regression test for a cpplib macro-expansion bug where
2    `@' becomes `@@' when stringified.  */
3 
4 /* { dg-do run } */
5 
6 #include <string.h>
7 #include <stdlib.h>
8 
9 #define STR(x) #x
10 
11 char *a = STR(@foo), *b = "@foo";
12 
13 int
main(void)14 main(void)
15 {
16   if (strcmp (a, b))
17     abort ();
18   return 0;
19 }
20