| // Copyright 2008, Google Inc. |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following disclaimer |
| // in the documentation and/or other materials provided with the |
| // distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef BASE_PORT_H_ |
| #define BASE_PORT_H_ |
| |
| #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) |
| |
| namespace base { |
| |
| // 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. |
| inline void va_copy(va_list& a, va_list& b) { |
| #if defined(COMPILER_GCC) |
| ::va_copy(a, b); |
| #elif defined(COMPILER_MSVC) |
| a = b; |
| #endif |
| } |
| |
| } // namespace base |
| |
| #endif // BASE_PORT_H_ |