gcc/testsuite/gcc.dg/Wreturn-mismatch-6.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-std=c90 -pedantic-errors -Wreturn-type" } */
   3
   4 void f1 (void);
   5
   6 int
   7 f2 (void)
   8 {
   9   f1 ();
  10 } /* { dg-warning "control reaches end of non-void\[^\n\r\]*-Wreturn-type" } */
  11
  12 static __inline__ int
  13 f3 (void)
  14 {
  15   f1 ();
  16 } /* { dg-warning "no return statement in function\[^\n\r\]*-Wreturn-type" } */
  17
  18 void
  19 f4 (void)
  20 {
  21   return 1; /* { dg-error "with a value,\[^\n\r\]*-Wreturn-mismatch" } */
  22 }
  23
  24 void
  25 f5 (void)
  26 {
  27   return f1 (); /* { dg-error "with expression\[^\n\r\]*-Wpedantic" } */
  28 }
  29
  30 int
  31 f6 (void)
  32 {
  33   return; /* { dg-warning "'return' with no value\[^\n\r\]*-Wreturn-mismatch" } */
  34 }
  35
  36 int
  37 f7 (void)
  38 {
  39   return f1 (); /* { dg-error "void value not ignored as it ought to be" } */
  40 } /* { dg-warning "control reaches end of non-void\[^\n\r\]*-Wreturn-type" } */