google项目webrtc中的头文件[ typedefs.h ]定义范例

#if !defined(_MSC_VER)
#include <stdint.h>
#else
// Define C99 equivalent types.
// Since MSVC doesn't include these headers, we have to write our own
// version to provide a compatibility layer between MSVC and the WebRTC
// headers.
typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
typedef signed long long int64_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
typedef unsigned long long uint64_t;
#endif

#if defined(WIN32)
typedef __int64 WebRtc_Word64;
typedef unsigned __int64 WebRtc_UWord64;
#else
typedef int64_t WebRtc_Word64;
typedef uint64_t WebRtc_UWord64;
#endif
typedef int32_t WebRtc_Word32;
typedef uint32_t WebRtc_UWord32;
typedef int16_t WebRtc_Word16;
typedef uint16_t WebRtc_UWord16;
typedef char WebRtc_Word8;
typedef uint8_t WebRtc_UWord8;

// Define endian for the platform
#define WEBRTC_LITTLE_ENDIAN

#elif defined(WEBRTC_TARGET_MAC_INTEL)
#include <stdint.h>

typedef int64_t WebRtc_Word64;
typedef uint64_t WebRtc_UWord64;
typedef int32_t WebRtc_Word32;
typedef uint32_t WebRtc_UWord32;
typedef int16_t WebRtc_Word16;
typedef char WebRtc_Word8;
typedef uint16_t WebRtc_UWord16;
typedef uint8_t WebRtc_UWord8;

// Define endian for the platform
#define WEBRTC_LITTLE_ENDIAN

#else
#error "No platform defined for WebRTC type definitions (typedefs.h)"
#endif