base/fix_wp64.h

   1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Various inline functions and macros to fix compilation of 32 bit target
   6 // on MSVC with /Wp64 flag enabled.
   7
   8 #ifndef BASE_FIX_WP64_H__
   9 #define BASE_FIX_WP64_H__
  10 #pragma once
  11
  12 #include <windows.h>
  13
  14 // Platform SDK fixes when building with /Wp64 for a 32 bits target.
  15 #if !defined(_WIN64) && defined(_Wp64)
  16
  17 #ifdef InterlockedExchangePointer
  18 #undef InterlockedExchangePointer
  19 // The problem is that the macro provided for InterlockedExchangePointer() is
  20 // doing a (LONG) C-style cast that triggers invariably the warning C4312 when
  21 // building on 32 bits.
  22 inline void* InterlockedExchangePointer(void* volatile* target, void* value) {
  23   return reinterpret_cast<void*>(static_cast<LONG_PTR>(InterlockedExchange(
  24       reinterpret_cast<volatile LONG*>(target),
  25       static_cast<LONG>(reinterpret_cast<LONG_PTR>(value)))));
  26 }
  27 #endif  // #ifdef InterlockedExchangePointer
  28
  29 #ifdef SetWindowLongPtrA
  30 #undef SetWindowLongPtrA
  31 // When build on 32 bits, SetWindowLongPtrX() is a macro that redirects to
  32 // SetWindowLongX(). The problem is that this function takes a LONG argument
  33 // instead of a LONG_PTR.
  34 inline LONG_PTR SetWindowLongPtrA(HWND window, int index, LONG_PTR new_long) {
  35   return ::SetWindowLongA(window, index, static_cast<LONG>(new_long));
  36 }
  37 #endif  // #ifdef SetWindowLongPtrA
  38
  39 #ifdef SetWindowLongPtrW
  40 #undef SetWindowLongPtrW
  41 inline LONG_PTR SetWindowLongPtrW(HWND window, int index, LONG_PTR new_long) {
  42   return ::SetWindowLongW(window, index, static_cast<LONG>(new_long));
  43 }
  44 #endif  // #ifdef SetWindowLongPtrW
  45
  46 #ifdef GetWindowLongPtrA
  47 #undef GetWindowLongPtrA
  48 inline LONG_PTR GetWindowLongPtrA(HWND window, int index) {
  49   return ::GetWindowLongA(window, index);
  50 }
  51 #endif  // #ifdef GetWindowLongPtrA
  52
  53 #ifdef GetWindowLongPtrW
  54 #undef GetWindowLongPtrW
  55 inline LONG_PTR GetWindowLongPtrW(HWND window, int index) {
  56   return ::GetWindowLongW(window, index);
  57 }
  58 #endif  // #ifdef GetWindowLongPtrW
  59
  60 #ifdef SetClassLongPtrA
  61 #undef SetClassLongPtrA
  62 inline LONG_PTR SetClassLongPtrA(HWND window, int index, LONG_PTR new_long) {
  63   return ::SetClassLongA(window, index, static_cast<LONG>(new_long));
  64 }
  65 #endif  // #ifdef SetClassLongPtrA
  66
  67 #ifdef SetClassLongPtrW
  68 #undef SetClassLongPtrW
  69 inline LONG_PTR SetClassLongPtrW(HWND window, int index, LONG_PTR new_long) {
  70   return ::SetClassLongW(window, index, static_cast<LONG>(new_long));
  71 }
  72 #endif  // #ifdef SetClassLongPtrW
  73
  74 #endif  // #if !defined(_WIN64) && defined(_Wp64)
  75
  76 #endif  // BASE_FIX_WP64_H__