upstream/mercurial-mirror Files · mercurial/compat.h

rust-node: binary Node ID and conversion utilities...

rust-node: binary Node ID and conversion utilities The choice of type makes sure that a `Node` has the exact wanted size. We'll use a different type for prefixes. Added dependency: hexadecimal conversion relies on the `hex` crate. The fact that sooner or later Mercurial is going to need to change its hash sizes has been taken strongly in consideration: - the hash length is a constant, but that is not directly exposed to callers. Changing the value of that constant is the only thing to do to change the hash length (even in unit tests) - the code could be adapted to support several sizes of hashes, if that turned out to be useful. To that effect, only the size of a given `Node` is exposed in the public API. - callers not involved in initial computation, I/O and FFI are able to operate without a priori assumptions on the hash size. The traits `FromHex` and `ToHex` have not been directly implemented, so that the doc-comments explaining these restrictions would stay really visible in `cargo doc` Differential Revision: https://phab.mercurial-scm.org/D7788

Matt Harbison - - Load All Authors

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      #ifndef _HG_COMPAT_H_

      #define _HG_COMPAT_H_

      #ifdef _WIN32

      #ifdef _MSC_VER

      #if _MSC_VER < 1900

      /* msvc 6.0 has problems */

      #define inline __inline

      #if defined(_WIN64)

      typedef __int64 ssize_t;

      typedef unsigned __int64 uintptr_t;

      #else

      typedef int ssize_t;

      typedef unsigned int uintptr_t;

      #endif

      typedef signed char int8_t;

      typedef short int16_t;

      typedef long int32_t;

      typedef __int64 int64_t;

      typedef unsigned char uint8_t;

      typedef unsigned short uint16_t;

      typedef unsigned long uint32_t;

      typedef unsigned __int64 uint64_t;

      #else

      /* VC++ 14 */

      #include <stdint.h>

      #if defined(_WIN64)

      typedef __int64 ssize_t;

      #else

      typedef int ssize_t;

      #endif

      #endif /* _MSC_VER < 1900 */

      #else

      /* not msvc */

      #include <stdint.h>

      #endif

      #else

      /* not windows */

      #include <sys/types.h>

      #if defined __BEOS__ && !defined __HAIKU__

      #include <ByteOrder.h>

      #else

      #include <arpa/inet.h>

      #endif

      #include <inttypes.h>

      #endif

      #if defined __hpux || defined __SUNPRO_C || defined _AIX

      #define inline

      #endif

      #ifdef __linux

      #define inline __inline

      #endif

      #endif

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				#ifndef _HG_COMPAT_H_
				#define _HG_COMPAT_H_

				#ifdef _WIN32
				#ifdef _MSC_VER
				#if _MSC_VER < 1900
				/* msvc 6.0 has problems */
				#define inline __inline
				#if defined(_WIN64)
				typedef __int64 ssize_t;
				typedef unsigned __int64 uintptr_t;
				#else
				typedef int ssize_t;
				typedef unsigned int uintptr_t;
				#endif
				typedef signed char int8_t;
				typedef short int16_t;
				typedef long int32_t;
				typedef __int64 int64_t;
				typedef unsigned char uint8_t;
				typedef unsigned short uint16_t;
				typedef unsigned long uint32_t;
				typedef unsigned __int64 uint64_t;
				#else
				/* VC++ 14 */
				#include <stdint.h>

				#if defined(_WIN64)
				typedef __int64 ssize_t;
				#else
				typedef int ssize_t;
				#endif
				#endif /* _MSC_VER < 1900 */

				#else
				/* not msvc */
				#include <stdint.h>
				#endif
				#else
				/* not windows */
				#include <sys/types.h>
				#if defined __BEOS__ && !defined __HAIKU__
				#include <ByteOrder.h>
				#else
				#include <arpa/inet.h>
				#endif
				#include <inttypes.h>
				#endif

				#if defined __hpux \|\| defined __SUNPRO_C \|\| defined _AIX
				#define inline
				#endif

				#ifdef __linux
				#define inline __inline
				#endif

				#endif