| // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef BASE_PORT_H_ |
| #define BASE_PORT_H_ |
| #pragma once |
| |
| #include <stdarg.h> |
| #include "build/build_config.h" |
| |
| #ifdef COMPILER_MSVC |
| #define GG_LONGLONG(x) x##I64 |
| #define GG_ULONGLONG(x) x##UI64 |
| #else |
| #define GG_LONGLONG(x) x##LL |
| #define GG_ULONGLONG(x) x##ULL |
| #endif |
| |
| // Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h> |
| // to get the INTn_C and UINTn_C macros for integer constants. It's difficult |
| // to guarantee any specific ordering of header includes, so it's difficult to |
| // guarantee that the INTn_C macros can be defined by including <stdint.h> at |
| // any specific point. Provide GG_INTn_C macros instead. |
| |
| #define GG_INT8_C(x) (x) |
| #define GG_INT16_C(x) (x) |
| #define GG_INT32_C(x) (x) |
| #define GG_INT64_C(x) GG_LONGLONG(x) |
| |
| #define GG_UINT8_C(x) (x ## U) |
| #define GG_UINT16_C(x) (x ## U) |
| #define GG_UINT32_C(x) (x ## U) |
| #define GG_UINT64_C(x) GG_ULONGLONG(x) |
| |
| // It's possible for functions that use a va_list, such as StringPrintf, to |
| // invalidate the data in it upon use. The fix is to make a copy of the |
| // structure before using it and use that copy instead. va_copy is provided |
| // for this purpose. MSVC does not provide va_copy, so define an |
| // implementation here. It is not guaranteed that assignment is a copy, so the |
| // StringUtil.VariableArgsFunc unit test tests this capability. |
| #if defined(COMPILER_GCC) |
| #define GG_VA_COPY(a, b) (va_copy(a, b)) |
| #elif defined(COMPILER_MSVC) |
| #define GG_VA_COPY(a, b) (a = b) |
| #endif |
| |
| // Define an OS-neutral wrapper for shared library entry points |
| #if defined(OS_WIN) |
| #define API_CALL __stdcall |
| #else |
| #define API_CALL |
| #endif |
| |
| #endif // BASE_PORT_H_ |
