license.bot | f003cfe | 2008-08-24 09:55:55 +0900 | [diff] [blame^] | 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. |
initial.commit | 3f4a732 | 2008-07-27 06:49:38 +0900 | [diff] [blame] | 4 | |
mmentovai@google.com | 38cabad | 2008-08-13 10:17:18 +0900 | [diff] [blame] | 5 | #ifndef BASE_PORT_H_ |
| 6 | #define BASE_PORT_H_ |
initial.commit | 3f4a732 | 2008-07-27 06:49:38 +0900 | [diff] [blame] | 7 | |
mmentovai@google.com | 38cabad | 2008-08-13 10:17:18 +0900 | [diff] [blame] | 8 | #include <stdarg.h> |
mmentovai@google.com | 3d555b8 | 2008-08-05 06:16:50 +0900 | [diff] [blame] | 9 | #include "build/build_config.h" |
| 10 | |
| 11 | #ifdef COMPILER_MSVC |
initial.commit | 3f4a732 | 2008-07-27 06:49:38 +0900 | [diff] [blame] | 12 | #define GG_LONGLONG(x) x##I64 |
| 13 | #define GG_ULONGLONG(x) x##UI64 |
| 14 | #else |
| 15 | #define GG_LONGLONG(x) x##LL |
| 16 | #define GG_ULONGLONG(x) x##ULL |
| 17 | #endif |
| 18 | |
| 19 | // Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h> |
| 20 | // to get the INTn_C and UINTn_C macros for integer constants. It's difficult |
| 21 | // to guarantee any specific ordering of header includes, so it's difficult to |
| 22 | // guarantee that the INTn_C macros can be defined by including <stdint.h> at |
| 23 | // any specific point. Provide GG_INTn_C macros instead. |
| 24 | |
| 25 | #define GG_INT8_C(x) (x) |
| 26 | #define GG_INT16_C(x) (x) |
| 27 | #define GG_INT32_C(x) (x) |
| 28 | #define GG_INT64_C(x) GG_LONGLONG(x) |
| 29 | |
| 30 | #define GG_UINT8_C(x) (x ## U) |
| 31 | #define GG_UINT16_C(x) (x ## U) |
| 32 | #define GG_UINT32_C(x) (x ## U) |
| 33 | #define GG_UINT64_C(x) GG_ULONGLONG(x) |
| 34 | |
mmentovai@google.com | 38cabad | 2008-08-13 10:17:18 +0900 | [diff] [blame] | 35 | namespace base { |
| 36 | |
| 37 | // It's possible for functions that use a va_list, such as StringPrintf, to |
| 38 | // invalidate the data in it upon use. The fix is to make a copy of the |
| 39 | // structure before using it and use that copy instead. va_copy is provided |
| 40 | // for this purpose. MSVC does not provide va_copy, so define an |
| 41 | // implementation here. It is not guaranteed that assignment is a copy, so the |
| 42 | // StringUtil.VariableArgsFunc unit test tests this capability. |
| 43 | inline void va_copy(va_list& a, va_list& b) { |
| 44 | #if defined(COMPILER_GCC) |
| 45 | ::va_copy(a, b); |
| 46 | #elif defined(COMPILER_MSVC) |
| 47 | a = b; |
| 48 | #endif |
| 49 | } |
| 50 | |
| 51 | } // namespace base |
| 52 | |
| 53 | #endif // BASE_PORT_H_ |
license.bot | f003cfe | 2008-08-24 09:55:55 +0900 | [diff] [blame^] | 54 | |