gcc/testsuite/gcc.dg/Wold-style-definition-1.c

   1 /* Test for warning about old-style function definition.  */
   2
   3 /* Origin: Andreas Jaeger <aj@suse.de> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-Wold-style-definition -std=gnu89" } */
   6
   7 void
   8 bar (a) int a; { } /* { dg-warning "old-style function definition" } */
   9
  10 void bar1 () {} /* { dg-warning "old-style function definition" } */
  11
  12 extern void bar2 (void);
  13
  14 void bar2 () {} /* { dg-warning "old-style function definition" } */
  15
  16 extern void bar3 (int);
  17
  18 void bar3 (a) {} /* { dg-warning "old-style function definition" } */
  19
  20 void bar4 (a) {} /* { dg-warning "old-style function definition" } */
  21
  22 void bar5 (int a) {}
  23
  24 void bar6 (void) {}