autoconf: Checks for some library functions.

diff --git a/builtin-diff.c b/builtin-diff.c
index 27451d56134e08364c33c26d5074693dd4437d31..99a2f766055d6c8c3231e38bd369169d3c742782 100644 (file)
--- a/builtin-diff.c
+++ b/builtin-diff.c
@@ -50,7 +50,7 @@ static int builtin_diff_files(struct rev_info *revs,
         * specified rev.max_count is reasonable (0 <= n <= 3), and
         * there is no other revision filtering parameter.
         */
-       if (revs->pending_objects ||
+       if (revs->pending.nr ||
            revs->min_age != -1 ||
            revs->max_age != -1 ||
            3 < revs->max_count)
@@ -172,7 +172,7 @@ static int builtin_diff_index(struct rev_info *revs,
         * Make sure there is one revision (i.e. pending object),
         * and there is no revision filtering parameters.
         */
-       if (!revs->pending_objects || revs->pending_objects->next ||
+       if (revs->pending.nr != 1 ||
            revs->max_count != -1 || revs->min_age != -1 ||
            revs->max_age != -1)
                usage(builtin_diff_usage);
@@ -181,10 +181,10 @@ static int builtin_diff_index(struct rev_info *revs,
 
 static int builtin_diff_tree(struct rev_info *revs,
                             int argc, const char **argv,
-                            struct object_list *ent)
+                            struct object_array_entry *ent)
 {
        const unsigned char *(sha1[2]);
-       int swap = 1;
+       int swap = 0;
        while (1 < argc) {
                const char *arg = argv[1];
                if (!strcmp(arg, "--raw"))
@@ -195,10 +195,10 @@ static int builtin_diff_tree(struct rev_info *revs,
        }
 
        /* We saw two trees, ent[0] and ent[1].
-        * unless ent[0] is unintesting, they are swapped
+        * if ent[1] is unintesting, they are swapped
         */
-       if (ent[0].item->flags & UNINTERESTING)
-               swap = 0;
+       if (ent[1].item->flags & UNINTERESTING)
+               swap = 1;
        sha1[swap] = ent[0].item->sha1;
        sha1[1-swap] = ent[1].item->sha1;
        diff_tree_sha1(sha1[0], sha1[1], "", &revs->diffopt);
@@ -208,7 +208,7 @@ static int builtin_diff_tree(struct rev_info *revs,
 
 static int builtin_diff_combined(struct rev_info *revs,
                                 int argc, const char **argv,
-                                struct object_list *ent,
+                                struct object_array_entry *ent,
                                 int ents)
 {
        const unsigned char (*parent)[20];
@@ -242,13 +242,14 @@ void add_head(struct rev_info *revs)
        obj = parse_object(sha1);
        if (!obj)
                return;
-       add_object(obj, &revs->pending_objects, NULL, "HEAD");
+       add_pending_object(revs, obj, "HEAD");
 }
 
 int cmd_diff(int argc, const char **argv, char **envp)
 {
+       int i;
        struct rev_info rev;
-       struct object_list *list, ent[100];
+       struct object_array_entry ent[100];
        int ents = 0, blobs = 0, paths = 0;
        const char *path = NULL;
        struct blobinfo blob[2];
@@ -281,7 +282,7 @@ int cmd_diff(int argc, const char **argv, char **envp)
        /* Do we have --cached and not have a pending object, then
         * default to HEAD by hand.  Eek.
         */
-       if (!rev.pending_objects) {
+       if (!rev.pending.nr) {
                int i;
                for (i = 1; i < argc; i++) {
                        const char *arg = argv[i];
@@ -294,7 +295,8 @@ int cmd_diff(int argc, const char **argv, char **envp)
                }
        }
 
-       for (list = rev.pending_objects; list; list = list->next) {
+       for (i = 0; i < rev.pending.nr; i++) {
+               struct object_array_entry *list = rev.pending.objects+i;
                struct object *obj = list->item;
                const char *name = list->name;
                int flags = (obj->flags & UNINTERESTING);
@@ -303,9 +305,9 @@ int cmd_diff(int argc, const char **argv, char **envp)
                obj = deref_tag(obj, NULL, 0);
                if (!obj)
                        die("invalid object '%s' given.", name);
-               if (!strcmp(obj->type, commit_type))
+               if (obj->type == TYPE_COMMIT)
                        obj = &((struct commit *)obj)->tree->object;
-               if (!strcmp(obj->type, tree_type)) {
+               if (obj->type == TYPE_TREE) {
                        if (ARRAY_SIZE(ent) <= ents)
                                die("more than %d trees given: '%s'",
                                    (int) ARRAY_SIZE(ent), name);
@@ -315,7 +317,7 @@ int cmd_diff(int argc, const char **argv, char **envp)
                        ents++;
                        continue;
                }
-               if (!strcmp(obj->type, blob_type)) {
+               if (obj->type == TYPE_BLOB) {
                        if (2 <= blobs)
                                die("more than two blobs given: '%s'", name);
                        memcpy(blob[blobs].sha1, obj->sha1, 20);