gcc/testsuite/c-c++-common/analyzer/out-of-bounds-pr114472.c

   1 /* Verify we don't ICE on cases involving very large values for size.  */
   2
   3 char s, d;
   4
   5 void
   6 foo(void)
   7 {
   8   __builtin_strncpy(&d, &s + 3, -1); /* { dg-warning "Wstringop-overflow" } */
   9   __builtin_strncpy(&d + 3, &s, -1); /* { dg-warning "Wstringop-overflow" } */
  10 }
  11
  12 void
  13 bar(void)
  14 {
  15   __builtin_strncpy(&d, &s - 3, -1); /* { dg-warning "Wstringop-overflow" } */
  16   __builtin_strncpy(&d - 3, &s, -1); /* { dg-warning "Wstringop-overflow" } */
  17 }