libcxx/test/std/utilities/meta/meta.unary/meta.unary.cat/member_object_pointer.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // type_traits
  10
  11 // member_object_pointer
  12
  13 #include <type_traits>
  14 #include "test_macros.h"
  15
  16 template <class T>
  17 void test_member_object_pointer_imp()
  18 {
  19     static_assert(!std::is_void<T>::value, "");
  20 #if TEST_STD_VER > 11
  21     static_assert(!std::is_null_pointer<T>::value, "");
  22 #endif
  23     static_assert(!std::is_integral<T>::value, "");
  24     static_assert(!std::is_floating_point<T>::value, "");
  25     static_assert(!std::is_array<T>::value, "");
  26     static_assert(!std::is_pointer<T>::value, "");
  27     static_assert(!std::is_lvalue_reference<T>::value, "");
  28     static_assert(!std::is_rvalue_reference<T>::value, "");
  29     static_assert( std::is_member_object_pointer<T>::value, "");
  30     static_assert(!std::is_member_function_pointer<T>::value, "");
  31     static_assert(!std::is_enum<T>::value, "");
  32     static_assert(!std::is_union<T>::value, "");
  33     static_assert(!std::is_class<T>::value, "");
  34     static_assert(!std::is_function<T>::value, "");
  35 }
  36
  37 template <class T>
  38 void test_member_object_pointer()
  39 {
  40     test_member_object_pointer_imp<T>();
  41     test_member_object_pointer_imp<const T>();
  42     test_member_object_pointer_imp<volatile T>();
  43     test_member_object_pointer_imp<const volatile T>();
  44 }
  45
  46 class Class
  47 {
  48 };
  49
  50 struct incomplete_type;
  51
  52 int main(int, char**)
  53 {
  54     test_member_object_pointer<int Class::*>();
  55
  56 //  LWG#2582
  57     static_assert(!std::is_member_object_pointer<incomplete_type>::value, "");
  58
  59   return 0;
  60 }