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 #ifndef BASE_PORT_H_ 6 #define BASE_PORT_H_ 7 #pragma once 8 9 #include <stdarg.h> 10 #include "build/build_config.h" 11 12 #ifdef COMPILER_MSVC 13 #define GG_LONGLONG(x) x##I64 14 #define GG_ULONGLONG(x) x##UI64 15 #else 16 #define GG_LONGLONG(x) x##LL 17 #define GG_ULONGLONG(x) x##ULL 18 #endif 19 20 // Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h> 21 // to get the INTn_C and UINTn_C macros for integer constants. It's difficult 22 // to guarantee any specific ordering of header includes, so it's difficult to 23 // guarantee that the INTn_C macros can be defined by including <stdint.h> at 24 // any specific point. Provide GG_INTn_C macros instead. 25 26 #define GG_INT8_C(x) (x) 27 #define GG_INT16_C(x) (x) 28 #define GG_INT32_C(x) (x) 29 #define GG_INT64_C(x) GG_LONGLONG(x) 30 31 #define GG_UINT8_C(x) (x ## U) 32 #define GG_UINT16_C(x) (x ## U) 33 #define GG_UINT32_C(x) (x ## U) 34 #define GG_UINT64_C(x) GG_ULONGLONG(x) 35 36 // It's possible for functions that use a va_list, such as StringPrintf, to 37 // invalidate the data in it upon use. The fix is to make a copy of the 38 // structure before using it and use that copy instead. va_copy is provided 39 // for this purpose. MSVC does not provide va_copy, so define an 40 // implementation here. It is not guaranteed that assignment is a copy, so the 41 // StringUtil.VariableArgsFunc unit test tests this capability. 42 #if defined(COMPILER_GCC) 43 #define GG_VA_COPY(a, b) (va_copy(a, b)) 44 #elif defined(COMPILER_MSVC) 45 #define GG_VA_COPY(a, b) (a = b) 46 #endif 47 48 // Define an OS-neutral wrapper for shared library entry points 49 #if defined(OS_WIN) 50 #define API_CALL __stdcall 51 #else 52 #define API_CALL 53 #endif 54 55 #endif // BASE_PORT_H_ 56
