text: /*
   *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
   *
   *  Use of this source code is governed by a BSD-style license
   *  that can be found in the LICENSE file in the root of the source
   *  tree. An additional intellectual property rights grant can be found
   *  in the file PATENTS.  All contributing project authors may
   *  be found in the AUTHORS file in the root of the source tree.
   */
  
  // This file contains platform-specific typedefs and defines.
  // Much of it is derived from Chromium's build/build_config.h.
  
  #ifndef WEBRTC_TYPEDEFS_H_
  #define WEBRTC_TYPEDEFS_H_
  
  // For access to standard POSIXish features, use WEBRTC_POSIX instead of a
  // more specific macro.
  #if defined(WEBRTC_MAC) || defined(WEBRTC_LINUX) || \
      defined(WEBRTC_ANDROID)
  #define WEBRTC_POSIX
  #endif
  
  // Processor architecture detection.  For more info on what's defined, see:
  //   http://msdn.microsoft.com/en-us/library/b0084kay.aspx
  //   http://www.agner.org/optimize/calling_conventions.pdf
  //   or with gcc, run: "echo | gcc -E -dM -"
  #if defined(_M_X64) || defined(__x86_64__)
  #define WEBRTC_ARCH_X86_FAMILY
  #define WEBRTC_ARCH_X86_64
  #define WEBRTC_ARCH_64_BITS
  #define WEBRTC_ARCH_LITTLE_ENDIAN
  #elif defined(_M_IX86) || defined(__i386__)
  #define WEBRTC_ARCH_X86_FAMILY
  #define WEBRTC_ARCH_X86
  #define WEBRTC_ARCH_32_BITS
  #define WEBRTC_ARCH_LITTLE_ENDIAN
  #elif defined(__ARMEL__)
  // TODO(ajm): We'd prefer to control platform defines here, but this is
  // currently provided by the Android makefiles. Commented to avoid duplicate
  // definition warnings.
  //#define WEBRTC_ARCH_ARM
  // TODO(ajm): Chromium uses the following two defines. Should we switch?
  //#define WEBRTC_ARCH_ARM_FAMILY
  //#define WEBRTC_ARCH_ARMEL
  #define WEBRTC_ARCH_32_BITS
  #define WEBRTC_ARCH_LITTLE_ENDIAN
  #elif defined(__MIPSEL__)
  #define WEBRTC_ARCH_32_BITS
  #define WEBRTC_ARCH_LITTLE_ENDIAN
  #else
  #error Please add support for your architecture in typedefs.h
  #endif
  
  #if !(defined(WEBRTC_ARCH_LITTLE_ENDIAN) ^ defined(WEBRTC_ARCH_BIG_ENDIAN))
  #error Define either WEBRTC_ARCH_LITTLE_ENDIAN or WEBRTC_ARCH_BIG_ENDIAN
  #endif
  
  #if defined(__SSE2__) || defined(_MSC_VER)
  #define WEBRTC_USE_SSE2
  #endif
  
  #if !defined(_MSC_VER)
  #include <stdint.h>
  #else
  // Define C99 equivalent types, since MSVC doesn't provide stdint.h.
  typedef signed char         int8_t;
  typedef signed short        int16_t;
  typedef signed int          int32_t;
  typedef __int64             int64_t;
  typedef unsigned char       uint8_t;
  typedef unsigned short      uint16_t;
  typedef unsigned int        uint32_t;
  typedef unsigned __int64    uint64_t;
  #endif
  
  // Borrowed from Chromium's base/compiler_specific.h.
  // Annotate a virtual method indicating it must be overriding a virtual
  // method in the parent class.
  // Use like:
  //   virtual void foo() OVERRIDE;
  #if defined(_MSC_VER)
  #define OVERRIDE override
  #elif defined(__clang__)
  // Clang defaults to C++03 and warns about using override. Squelch that.
  // Intentionally no push/pop here so all users of OVERRIDE ignore the warning
  // too. This is like passing -Wno-c++11-extensions, except that GCC won't die
  // (because it won't see this pragma).
  #pragma clang diagnostic ignored "-Wc++11-extensions"
  #define OVERRIDE override
  #else
  #define OVERRIDE
  #endif
  
  // Annotate a function indicating the caller must examine the return value.
  // Use like:
  //   int foo() WARN_UNUSED_RESULT;
  // TODO(ajm): Hack to avoid multiple definitions until the base/ of webrtc and
  // libjingle are merged.
  #if !defined(WARN_UNUSED_RESULT)
  #if defined(__GNUC__)
  #define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
  #else
  #define WARN_UNUSED_RESULT
  #endif
  #endif  // WARN_UNUSED_RESULT
  
  #endif  // WEBRTC_TYPEDEFS_H_
  