gcc/testsuite/gcc.dg/vla-19.c

   1 /* Test diagnostics for variably modified function return types.  PR
   2    39564.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=c99" } */
   5
   6 int a;
   7
   8 void
   9 f1 (void)
  10 {
  11   typedef int T[a];
  12   extern T *g1 (void); /* { dg-error "non-nested function with variably modified type" } */
  13 }
  14
  15 void
  16 f2 (void)
  17 {
  18   extern int (*g2 (void))[a]; /* { dg-error "non-nested function with variably modified type" } */
  19 }
  20
  21 void
  22 f3 (void)
  23 {
  24   typedef int T[a];
  25   T *g3 (void); /* { dg-error "non-nested function with variably modified type" } */
  26 }
  27
  28 void
  29 f4 (void)
  30 {
  31   int (*g4 (void))[a]; /* { dg-error "non-nested function with variably modified type" } */
  32 }