src/oid.h

   1 /*
   2  * Copyright (C) the libgit2 contributors. All rights reserved.
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7 #ifndef INCLUDE_oid_h__
   8 #define INCLUDE_oid_h__
   9
  10 #include "git2/oid.h"
  11
  12 GIT_INLINE(int) git_oid__hashcmp(const unsigned char *sha1, const unsigned char *sha2)
  13 {
  14         int i;
  15
  16         for (i = 0; i < GIT_OID_RAWSZ; i++, sha1++, sha2++) {
  17                 if (*sha1 != *sha2)
  18                         return *sha1 - *sha2;
  19         }
  20
  21         return 0;
  22 }
  23
  24 /*
  25  * Compare two oid structures.
  26  *
  27  * @param a first oid structure.
  28  * @param b second oid structure.
  29  * @return <0, 0, >0 if a < b, a == b, a > b.
  30  */
  31 GIT_INLINE(int) git_oid__cmp(const git_oid *a, const git_oid *b)
  32 {
  33         return git_oid__hashcmp(a->id, b->id);
  34 }
  35
  36 #endif