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 8 #include <stdarg.h> 9 #include "build/build_config.h" 10 11 #ifdef COMPILER_MSVC 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 35 // It's possible for functions that use a va_list, such as StringPrintf, to 36 // invalidate the data in it upon use. The fix is to make a copy of the 37 // structure before using it and use that copy instead. va_copy is provided 38 // for this purpose. MSVC does not provide va_copy, so define an 39 // implementation here. It is not guaranteed that assignment is a copy, so the 40 // StringUtil.VariableArgsFunc unit test tests this capability. 41 #if defined(COMPILER_GCC) 42 #define GG_VA_COPY(a, b) (va_copy(a, b)) 43 #elif defined(COMPILER_MSVC) 44 #define GG_VA_COPY(a, b) (a = b) 45 #endif 46 47 // Define an OS-neutral wrapper for shared library entry points 48 #if defined(OS_WIN) 49 #define API_CALL __stdcall 50 #else 51 #define API_CALL 52 #endif 53 54 #endif // BASE_PORT_H_ 55
