Hash :
c6ebb4a9
Author :
Date :
2008-11-22T15:17:17
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#ifndef INCLUDE_git_oid_h__
#define INCLUDE_git_oid_h__
#include "common.h"
/**
* @file git/oid.h
* @brief Git object id routines
* @defgroup git_oid Git object id routines
* @ingroup Git
* @{
*/
GIT_BEGIN_DECL
/** Unique identity of any object (commit, tree, blob, tag). */
typedef struct
{
/** raw binary formatted id */
unsigned char id[20];
} git_oid;
/**
* Parse a hex formatted object id into a git_oid.
* @param out oid structure the result is written into.
* @param str input hex string; must be pointing at the start of
* the hex sequence and have at least the number of bytes
* needed for an oid encoded in hex (40 bytes).
* @return GIT_SUCCESS if valid; GIT_ENOTOID on failure.
*/
GIT_EXTERN(int) git_oid_mkstr(git_oid *out, const char *str);
/**
* Copy an already raw oid into a git_oid structure.
* @param out oid structure the result is written into.
* @param raw the raw input bytes to be copied.
*/
GIT_INLINE(void) git_oid_mkraw(git_oid *out, const unsigned char *raw)
{
memcpy(out->id, raw, sizeof(out->id));
}
/**
* Copy an oid from one structure to another.
* @param out oid structure the result is written into.
* @param src oid structure to copy from.
*/
GIT_INLINE(void) git_oid_cpy(git_oid *out, const git_oid *src)
{
memcpy(out->id, src->id, sizeof(out->id));
}
/**
* Compare two oid structures.
* @param a first oid structure.
* @param b second oid structure.
* @return <0, 0, >0 if a < b, a == b, a > b.
*/
GIT_INLINE(int) git_oid_cmp(const git_oid *a, const git_oid *b)
{
return memcmp(a->id, b->id, sizeof(a->id));
}
/** @} */
GIT_END_DECL
#endif