1 /* Regression test: #ifdef 0 should not crash.  Problem noted by
2    Jakub Jelinek <jakub@redhat.com>.  */
3 /* { dg-do preprocess } */
4 
5 #ifdef 0  /* { dg-error "macro names" } */
6 #endif
7 
8 #ifndef 0  /* { dg-error "macro names" } */
9 #endif
10