gcc/testsuite/gcc.dg/Wstringop-overflow-16.c

   1 /* PR middle-end/91599 - GCC does not say where warning is happening
   2    { dg-do compile }
   3    { dg-options "-O2 -Wall" } */
   4
   5 struct charseq {
   6   unsigned char bytes[0];         // { dg-message "while referencing|object declared here" }
   7 };
   8
   9 struct locale_ctype_t {
  10   struct charseq *mboutdigits[10];
  11 };
  12
  13 void ctype_finish (struct locale_ctype_t *ctype)
  14 {
  15   long unsigned int cnt;
  16   for (cnt = 0; cnt < 20; ++cnt) {
  17     static struct charseq replace[2];
  18     replace[0].bytes[1] = '\0';   // { dg-warning "\\\[-Warray-bounds|-Wstringop-overflow" }
  19     ctype->mboutdigits[cnt] = &replace[0];
  20   }
  21 }