gcc/testsuite/gcc.dg/pr78902.c

   1 /* { dg-do compile } */
   2
   3 void *ptr;
   4
   5 void foo(void)
   6 {
   7  __builtin_malloc (1); /* { dg-warning "ignoring return value of '__builtin_malloc' declared with attribute 'warn_unused_result'" } */
   8  __builtin_calloc (10, 20); /* { dg-warning "ignoring return value of '__builtin_calloc' declared with attribute 'warn_unused_result'" } */
   9  __builtin_alloca (10); /* { dg-warning "ignoring return value of '__builtin_alloca' declared with attribute 'warn_unused_result'" } */
  10  __builtin_realloc (ptr, 100); /* { dg-warning "ignoring return value of '__builtin_realloc' declared with attribute 'warn_unused_result'" } */
  11  __builtin_aligned_alloc (10, 16); /* { dg-warning "ignoring return value of '__builtin_aligned_alloc' declared with attribute 'warn_unused_result'" } */
  12  __builtin_strdup ("pes"); /* { dg-warning "ignoring return value of '__builtin_strdup' declared with attribute 'warn_unused_result'" } */
  13  __builtin_strndup ("pes", 10); /* { dg-warning "ignoring return value of '__builtin_strndup' declared with attribute 'warn_unused_result'" } */
  14 }