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[PATCH 06/19] reset.c: remove unnecessary variable 'i'

From
Martin von Zweigbergk <martinvonz@gmail.com>
Date
Jan 9, 2013, 08:16 UTC
Message-ID
<1357719376-16406-7-git-send-email-martinvonz@gmail.com>
In-Reply-To
<1357719376-16406-1-git-send-email-martinvonz@gmail.com>

Throughout most of parse_args(), the variable 'i' remains at 0. In the remaining few cases, we can do pointer arithmentic on argv itself instead. --- This is clearly mostly a matter of taste. The remainder of the series does not depend on it in any way.

 builtin/reset.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)
diff --git a/builtin/reset.c b/builtin/reset.c
index 9473725..68be05c 100644
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -199,7 +199,6 @@ static void die_if_unmerged_cache(int reset_type)
 }
 
 const char **parse_args(int argc, const char **argv, const char *prefix, const char **rev_ret) {
-	int i = 0;
 	const char *rev = "HEAD";
 	unsigned char unused[20];
 	/*
@@ -210,34 +209,34 @@ const char **parse_args(int argc, const char **argv, const char *prefix, const c
 	 * git reset [-opts] -- <paths>...
 	 * git reset [-opts] <paths>...
 	 *
-	 * At this point, argv[i] points immediately after [-opts].
+	 * At this point, argv points immediately after [-opts].
 	 */
 
-	if (i < argc) {
-		if (!strcmp(argv[i], "--")) {
-			i++; /* reset to HEAD, possibly with paths */
-		} else if (i + 1 < argc && !strcmp(argv[i+1], "--")) {
-			rev = argv[i];
-			i += 2;
+	if (argc) {
+		if (!strcmp(argv[0], "--")) {
+			argv++; /* reset to HEAD, possibly with paths */
+		} else if (argc > 1 && !strcmp(argv[1], "--")) {
+			rev = argv[0];
+			argv += 2;
 		}
 		/*
-		 * Otherwise, argv[i] could be either <rev> or <paths> and
+		 * Otherwise, argv[0] could be either <rev> or <paths> and
 		 * has to be unambiguous.
 		 */
-		else if (!get_sha1_committish(argv[i], unused)) {
+		else if (!get_sha1_committish(argv[0], unused)) {
 			/*
-			 * Ok, argv[i] looks like a rev; it should not
+			 * Ok, argv[0] looks like a rev; it should not
 			 * be a filename.
 			 */
-			verify_non_filename(prefix, argv[i]);
-			rev = argv[i++];
+			verify_non_filename(prefix, argv[0]);
+			rev = *argv++;
 		} else {
 			/* Otherwise we treat this as a filename */
-			verify_filename(prefix, argv[i], 1);
+			verify_filename(prefix, argv[0], 1);
 		}
 	}
 	*rev_ret = rev;
-	return i < argc ? get_pathspec(prefix, argv + i) : NULL;
+	return *argv ? get_pathspec(prefix, argv) : NULL;
 }
 
 int cmd_reset(int argc, const char **argv, const char *prefix)
-- 
1.8.1.rc3.331.g1ef2165
Previous: Martin von ZweigbergkNext: Junio C Hamano
Message 15 of 68 in “reset improvements”
  1. 00/19 reset improvementsMartin von Zweigbergk, Jan 9, 2013
  2. 01/19 reset $pathspec: no need to discard indexMartin von Zweigbergk, Jan 9, 2013
  3. 02/19 reset $pathspec: exit with code 0 if successfulMartin von Zweigbergk, Jan 9, 2013
  4. 03/19 reset.c: pass pathspec around instead of (prefix, argv) pairMartin von Zweigbergk, Jan 9, 2013
  5. Matt KraaiJan 9, 2013
  6. Junio C HamanoJan 9, 2013
  7. Duy NguyenJan 10, 2013
  8. Junio C HamanoJan 10, 2013
  9. Duy NguyenJan 11, 2013
  10. 04/19 reset: don't allow "git reset -- $pathspec" in bare repoMartin von Zweigbergk, Jan 9, 2013
  11. Junio C HamanoJan 9, 2013
  12. Martin von ZweigbergkJan 10, 2013
  13. Junio C HamanoJan 10, 2013
  14. 05/19 reset.c: extract function for parsing argumentsMartin von Zweigbergk, Jan 9, 2013
  15. 06/19 reset.c: remove unnecessary variable 'i'Martin von Zweigbergk, Jan 9, 2013
  16. Junio C HamanoJan 9, 2013
  17. Martin von ZweigbergkJan 10, 2013
  18. 07/19 reset.c: extract function for updating {ORIG,}HEADMartin von Zweigbergk, Jan 9, 2013
  19. Matt KraaiJan 9, 2013
  20. 08/19 reset.c: share call to die_if_unmerged_cache()Martin von Zweigbergk, Jan 9, 2013
  21. Junio C HamanoJan 9, 2013
  22. Martin von ZweigbergkJan 10, 2013
  23. 09/19 reset.c: replace switch by if-elseMartin von Zweigbergk, Jan 9, 2013
  24. Junio C HamanoJan 9, 2013
  25. Martin von ZweigbergkJan 11, 2013
  26. Junio C HamanoJan 11, 2013
  27. 10/19 reset --keep: only write index file onceMartin von Zweigbergk, Jan 9, 2013
  28. Junio C HamanoJan 9, 2013
  29. 11/19 reset: avoid redundant error messageMartin von Zweigbergk, Jan 9, 2013
  30. 12/19 reset.c: move update_index_refresh() call out of read_from_tree()Martin von Zweigbergk, Jan 9, 2013
  31. 13/19 reset.c: move lock, write and commit out of update_index_refresh()Martin von Zweigbergk, Jan 9, 2013
  32. 14/19 reset [--mixed]: don't write index file twiceMartin von Zweigbergk, Jan 9, 2013
  33. 15/19 reset.c: finish entire cmd_reset() whether or not pathspec is givenMartin von Zweigbergk, Jan 9, 2013
  34. Junio C HamanoJan 9, 2013
  35. 16/19 reset [--mixed] --quiet: don't refresh indexMartin von Zweigbergk, Jan 9, 2013
  36. Jeff KingJan 9, 2013
  37. Martin von ZweigbergkJan 9, 2013
  38. Junio C HamanoJan 9, 2013
  39. Martin von ZweigbergkJan 9, 2013
  40. Junio C HamanoJan 9, 2013
  41. 17/19 reset $sha1 $pathspec: require $sha1 only to be treeishMartin von Zweigbergk, Jan 9, 2013
  42. Junio C HamanoJan 9, 2013
  43. 18/19 reset: allow reset on unborn branchMartin von Zweigbergk, Jan 9, 2013
  44. 19/19 reset [--mixed]: use diff-based reset whether or not pathspec was givenMartin von Zweigbergk, Jan 9, 2013
  45. Junio C HamanoJan 9, 2013
  46. 00/19 reset improvementsMartin von Zweigbergk, Jan 15, 2013
  47. 01/19 reset $pathspec: no need to discard indexMartin von Zweigbergk, Jan 15, 2013
  48. 02/19 reset $pathspec: exit with code 0 if successfulMartin von Zweigbergk, Jan 15, 2013
  49. 03/19 reset.c: pass pathspec around instead of (prefix, argv) pairMartin von Zweigbergk, Jan 15, 2013
  50. 04/19 reset: don't allow "git reset -- $pathspec" in bare repoMartin von Zweigbergk, Jan 15, 2013
  51. 05/19 reset.c: extract function for parsing argumentsMartin von Zweigbergk, Jan 15, 2013
  52. 06/19 reset.c: remove unnecessary variable 'i'Martin von Zweigbergk, Jan 15, 2013
  53. 07/19 reset.c: extract function for updating {ORIG_,}HEADMartin von Zweigbergk, Jan 15, 2013
  54. 08/19 reset.c: share call to die_if_unmerged_cache()Martin von Zweigbergk, Jan 15, 2013
  55. 09/19 reset --keep: only write index file onceMartin von Zweigbergk, Jan 15, 2013
  56. 10/19 reset: avoid redundant error messageMartin von Zweigbergk, Jan 15, 2013
  57. 11/19 reset.c: replace switch by if-elseMartin von Zweigbergk, Jan 15, 2013
  58. 12/19 reset.c: move update_index_refresh() call out of read_from_tree()Martin von Zweigbergk, Jan 15, 2013
  59. 13/19 reset.c: move lock, write and commit out of update_index_refresh()Martin von Zweigbergk, Jan 15, 2013
  60. 14/19 reset [--mixed]: only write index file onceMartin von Zweigbergk, Jan 15, 2013
  61. 15/19 reset.c: finish entire cmd_reset() whether or not pathspec is givenMartin von Zweigbergk, Jan 15, 2013
  62. 16/19 reset.c: inline update_index_refresh()Martin von Zweigbergk, Jan 15, 2013
  63. 17/19 reset $sha1 $pathspec: require $sha1 only to be treeishMartin von Zweigbergk, Jan 15, 2013
  64. 17/19 fixup! reset $sha1 $pathspec: require $sha1 only to be treeishMartin von Zweigbergk, Jan 16, 2013
  65. Martin von ZweigbergkJan 16, 2013
  66. 18/19 reset: allow reset on unborn branchMartin von Zweigbergk, Jan 15, 2013
  67. 19/19 reset [--mixed]: use diff-based reset whether or not pathspec was givenMartin von Zweigbergk, Jan 15, 2013
  68. Martin von ZweigbergkJan 15, 2013

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