gcc/testsuite/gcc.dg/20041213-1.c

   1 /* { dg-do compile } */
   2 /* test redeclarations with void and implicit int */
   3 extern foo1(); /* { dg-error "error: previous declaration" } */
   4 extern void foo1(); /* { dg-error "error: conflicting types" } */
   5
   6 extern void foo2(); /* { dg-error "error: previous declaration" } */
   7 extern foo2(); /* { dg-error "error: conflicting types" } */
   8
   9 void foo3() {} /* { dg-error "error: previous definition" } */
  10 extern foo3(); /* { dg-error "error: conflicting types" } */
  11
  12 extern foo4(); /* { dg-error "error: previous declaration" } */
  13 void foo4() {} /* { dg-error "error: conflicting types" } */
  14
  15 extern void foo5(); /* { dg-warning "previous declaration" } */
  16 foo5() {} /* { dg-warning "conflicting types" } */
  17
  18 foo6() {} /* { dg-error "error: previous definition" } */
  19 extern void foo6(); /* { dg-error "error: conflicting types" } */
  20
  21 foo7() {} /* { dg-error "error: previous definition" } */
  22 void foo7() {} /* { dg-error "error: conflicting types" } */
  23
  24 void foo8() {} /* { dg-error "error: previous definition" } */
  25 foo8() {} /* { dg-error "error: conflicting types" } */
  26
  27 int use9() { foo9(); } /* { dg-warning "previous implicit declaration" } */
  28 extern void foo9(); /* { dg-warning "conflicting types" } */
  29
  30 int use10() { foo10(); } /* { dg-warning "previous implicit declaration" } */
  31 void foo10() {} /* { dg-warning "conflicting types" } */
  32