clang/test/Sema/MicrosoftExtensions.cpp

   1 // RUN: %clang_cc1 -triple i686-windows %s -fsyntax-only -Wmicrosoft -verify -fms-extensions
   2 // RUN: %clang_cc1 -triple x86_64-windows %s -fsyntax-only -Wmicrosoft -verify -fms-extensions
   3
   4 // Check that __ptr32/__ptr64 can be compared.
   5 int test_ptr_comparison(int *__ptr32 __uptr p32u, int *__ptr32 __sptr p32s,
   6                         int *__ptr64 p64) {
   7   return (p32u == p32s) +
   8          (p32u == p64) +
   9          (p32s == p64);
  10 }
  11
  12 template<typename T>
  13 void bad(T __ptr32 a) { // expected-error {{'__ptr32' attribute only applies to pointer arguments}}`
  14   (*a) += 1;
  15 }
  16
  17 template<int size_expected, typename T>
  18 void f(T a) {
  19   (*a) += sizeof(a);
  20   static_assert(sizeof(a) == size_expected, "instantiated template argument has unexpected size");
  21 }
  22 void g(int *p) {
  23   // instantiate for default sized pointer
  24   f<sizeof(void*)>(p);
  25 }
  26
  27 void h(int *__ptr32 p) {
  28   // instantiate for 32-bit pointer
  29   f<4>(p);
  30 }