[PATCH 3/6] Convert diffcore-rename's rename_src to the new sorted-array API.

[Yann Dirson <ydirson@altern.org>]

There was no compelling reason to pass separately two members of a
single struct to the insert function.  That's a happy coincidence.

Signed-off-by: Yann Dirson <ydirson@altern.org>
---
 diffcore-rename.c |   57 ++++++++++++++++++----------------------------------
 1 files changed, 20 insertions(+), 37 deletions(-)

diff --git a/diffcore-rename.c b/diffcore-rename.c
index a655017..7e35a82 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -37,46 +37,29 @@ declare_sorted_array_insert_checkbool(static, register_rename_dst, struct diff_f
 				      rename_dst, rename_dst_cmp, rename_dst_init);
 
 /* Table of rename/copy src files */
-static struct diff_rename_src {
+
+struct diff_rename_src {
 	struct diff_filespec *one;
 	unsigned short score; /* to remember the break score */
-} *rename_src;
-static int rename_src_nr, rename_src_alloc;
+};
 
-static struct diff_rename_src *register_rename_src(struct diff_filespec *one,
-						   unsigned short score)
+static int rename_src_cmp(struct diff_filepair *ref_pair, struct diff_rename_src *elem)
 {
-	int first, last;
-
-	first = 0;
-	last = rename_src_nr;
-	while (last > first) {
-		int next = (last + first) >> 1;
-		struct diff_rename_src *src = &(rename_src[next]);
-		int cmp = strcmp(one->path, src->one->path);
-		if (!cmp)
-			return src;
-		if (cmp < 0) {
-			last = next;
-			continue;
-		}
-		first = next+1;
-	}
-
-	/* insert to make it at "first" */
-	if (rename_src_alloc <= rename_src_nr) {
-		rename_src_alloc = alloc_nr(rename_src_alloc);
-		rename_src = xrealloc(rename_src,
-				      rename_src_alloc * sizeof(*rename_src));
-	}
-	rename_src_nr++;
-	if (first < rename_src_nr)
-		memmove(rename_src + first + 1, rename_src + first,
-			(rename_src_nr - first - 1) * sizeof(*rename_src));
-	rename_src[first].one = one;
-	rename_src[first].score = score;
-	return &(rename_src[first]);
+	return strcmp(ref_pair->one->path, elem->one->path);
+}
+static void rename_src_init(struct diff_rename_src *elem, struct diff_filepair *ref_pair)
+{
+	elem->one = ref_pair->one;
+	elem->score = ref_pair->score;
 }
+declare_sorted_array(static, struct diff_rename_src, rename_src);
+declare_gen_binsearch(static, struct diff_rename_src, _locate_rename_src,
+		      struct diff_filepair *);
+declare_gen_sorted_insert(static, struct diff_rename_src, _register_rename_src,
+			  _locate_rename_src, struct diff_filepair *);
+declare_sorted_array_insert_checkbool(static, register_rename_src, struct diff_filepair *,
+				      _register_rename_src,
+				      rename_src, rename_src_cmp, rename_src_init);
 
 static int basename_same(struct diff_filespec *src, struct diff_filespec *dst)
 {
@@ -433,7 +416,7 @@ void diffcore_rename(struct diff_options *options)
 			 */
 			if (p->broken_pair && !p->score)
 				p->one->rename_used++;
-			register_rename_src(p->one, p->score);
+			register_rename_src(p);
 		}
 		else if (detect_rename == DIFF_DETECT_COPY) {
 			/*
@@ -441,7 +424,7 @@ void diffcore_rename(struct diff_options *options)
 			 * one, to indicate ourselves as a user.
 			 */
 			p->one->rename_used++;
-			register_rename_src(p->one, p->score);
+			register_rename_src(p);
 		}
 	}
 	if (rename_dst_nr == 0 || rename_src_nr == 0)
-- 
1.7.2.3