gcc/testsuite/gcc.dg/Woverride-init-1.c

   1 /* Test for warnings for overriding designated initializers:
   2    -Woverride-init.  Bug 24010.  */
   3 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-Woverride-init" } */
   6
   7 struct s { int a; int b; int c; };
   8 union u { char a; long long b; };
   9
  10 struct s s0 = {
  11   .a = 1,
  12   .b = 2,
  13   .a = 3, /* { dg-warning "initialized field overwritten" } */
  14   4, /* { dg-warning "initialized field overwritten" } */
  15   5
  16 };
  17
  18 union u u0 = {
  19   .a = 1,
  20   .b = 2, /* { dg-warning "initialized field overwritten" } */
  21   .a = 3 }; /* { dg-warning "initialized field overwritten" } */
  22
  23 int a[5] = {
  24   [0] = 1,
  25   [1] = 2,
  26   [0] = 3, /* { dg-warning "initialized field overwritten" } */
  27   [2] = 4
  28 };