gcc/testsuite/gcc.dg/qual-return-3.c

   1 /* Test for warnings for qualified function return types.  Bug 15052
   2    from Olatunji Ruwase (tjruwase at stanfordalumni.org): qualifiers
   3    should not be lost when merging declarations.  */
   4
   5 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
   6 /* { dg-do compile } */
   7 /* { dg-options "-std=gnu99" } */
   8
   9 int foo (); /* { dg-message "note: previous declaration" "different qualifiers" } */
  10 const int foo () { return 0; } /* { dg-error "conflicting types" "different qualifiers" } */
  11
  12 void bar (void);
  13 volatile void bar () { } /* { dg-warning "qualified|volatile" "different qualifiers" } */
  14
  15 volatile void baz (void);
  16 void baz () { } /* { dg-warning "not compatible" "different qualifiers" } */