gcc/testsuite/gcc.dg/c99-tag-4.c

   1 /* Test for handling of tags.  "enum foo;" is invalid after an existing
   2    declaration (does not redeclare the tag) as well as before: bug 107164.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=c99 -pedantic-errors" } */
   5
   6 enum e1; /* { dg-error "ISO C forbids forward references to 'enum' types" } */
   7 enum e2 { E };
   8 enum e2; /* { dg-error "empty declaration of 'enum' type does not redeclare tag" } */