test/Sema/builtin-object-size.c

   1 // RUN: clang -fsyntax-only -verify %s &&
   2 // RUN: clang -fsyntax-only -triple x86_64-apple-darwin9 -verify %s
   3
   4 int a[10];
   5
   6 int f0() {
   7   return __builtin_object_size(&a); // expected-error {{too few arguments to function}}
   8 }
   9 int f1() {
  10   return (__builtin_object_size(&a, 0) +
  11           __builtin_object_size(&a, 1) +
  12           __builtin_object_size(&a, 2) +
  13           __builtin_object_size(&a, 3));
  14 }
  15 int f2() {
  16   return __builtin_object_size(&a, -1); // expected-error {{argument should be a value from 0 to 3}}
  17 }
  18 int f3() {
  19   return __builtin_object_size(&a, 4); // expected-error {{argument should be a value from 0 to 3}}
  20 }
  21
  22
  23 // rdar://6252231 - cannot call vsnprintf with va_list on x86_64
  24 void f4(const char *fmt, ...) {
  25  __builtin_va_list args;
  26  __builtin___vsnprintf_chk (0, 42, 0, 11, fmt, args);
  27 }
  28