khash: implement begin/end via functions instead of macros

Right now, the `git_*map_begin()` and `git_*map_end()` helpers are
implemented via macros which simply redirect to `kh_begin` and `kh_end`.
As these macros refer to members of the map structures, they make it
impossible to move the khash include into the implementation files.

Implement these helpers as real functions instead to further decouple
the headers from implementations.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/offmap.c b/src/offmap.c
index ab6649697..2ab485589 100644
--- a/src/offmap.c
+++ b/src/offmap.c
@@ -81,3 +81,14 @@ void git_offmap_delete(git_offmap *map, const git_off_t key)
 	if (git_offmap_valid_index(map, idx))
 		git_offmap_delete_at(map, idx);
 }
+
+size_t git_offmap_begin(git_offmap *map)
+{
+	GIT_UNUSED(map);
+	return 0;
+}
+
+size_t git_offmap_end(git_offmap *map)
+{
+	return map->n_buckets;
+}