gcc/testsuite/c-c++-common/Wmemset-transposed-args2.c

   1 /* { dg-do compile { target { c || c++11 } } } */
   2 /* { dg-options "-Wall" } */
   3 /* { dg-additional-options "-std=gnu99" { target c } } */
   4
   5 typedef __SIZE_TYPE__ size_t;
   6 extern
   7 #ifdef __cplusplus
   8 "C"
   9 #endif
  10 void *memset (void *, int, size_t);
  11 char buf[1024];
  12
  13 void
  14 foo ()
  15 {
  16   memset (buf, sizeof buf, u'\0'); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
  17   memset (buf, sizeof buf, U'\0'); /* { dg-warning ".memset. used with constant zero length parameter; this could be due to transposed parameters" } */
  18   memset (buf, u'\0', 0);
  19   memset (buf, U'\0', 0);
  20 }