mfbt/tests/TestWinArchDefs.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 // This code tests the consistency of architecture-specific predefined macros
   8 // inherited from MSVC, before and after windows.h inclusion. See
   9 // https://learn.microsoft.com/en-us/cpp/preprocessor/predefined-macros for a
  10 // list of such macros.
  11
  12 // If this test compiles, it is successful. See bug 1866562 for an example
  13 // where mingwclang builds were failing to compile this code.
  14
  15 #if defined(_M_IX86)
  16 constexpr auto kIX86 = _M_IX86;
  17 #endif
  18
  19 #if defined(_M_X64)
  20 constexpr auto kX64 = _M_X64;
  21 #endif
  22
  23 #if defined(_M_AMD64)
  24 constexpr auto kAMD64 = _M_AMD64;
  25 #endif
  26
  27 #if defined(_M_ARM)
  28 constexpr auto kARM = _M_ARM;
  29 #endif
  30
  31 #if defined(_M_ARM64)
  32 constexpr auto kARM64 = _M_ARM64;
  33 #endif
  34
  35 #include <windows.h>
  36
  37 #if defined(_M_IX86)
  38 static_assert(kIX86 == _M_IX86);
  39 #endif
  40
  41 #if defined(_M_X64)
  42 static_assert(kX64 == _M_X64);
  43 #endif
  44
  45 #if defined(_M_AMD64)
  46 static_assert(kAMD64 == _M_AMD64);
  47 #endif
  48
  49 #if defined(_M_ARM)
  50 static_assert(kARM == _M_ARM);
  51 #endif
  52
  53 #if defined(_M_ARM64)
  54 static_assert(kARM64 == _M_ARM64);
  55 #endif
  56
  57 // If this test compiles, it is successful.
  58 int main() { return 0; }