Hook scanning and indentation functions to find_newline. This helps

to avoid duplicated code and renders more respect to newline cache.
* lisp.h (scan_newline): Prefer ptrdiff_t to EMACS_INT.
* cmds.c (Fforward_line):
* indent.c (scan_for_column, Fcurrent_indentation, indented_beyond_p):
Use find_newline and avoid unnecessary point movements.
* search.c (scan_newline): Implement on top of find_newline.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lisp.h b/src/lisp.h
index 3dab0d6ddfd..f3a78f48a17 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -3834,8 +3834,8 @@ extern ptrdiff_t fast_looking_at (Lisp_Object, ptrdiff_t, ptrdiff_t,
                                   ptrdiff_t, ptrdiff_t, Lisp_Object);
 extern ptrdiff_t find_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
                                ptrdiff_t, ptrdiff_t *, ptrdiff_t *, bool);
-extern EMACS_INT scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
-                               EMACS_INT, bool);
+extern ptrdiff_t scan_newline (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t,
+                               ptrdiff_t, bool);
 extern ptrdiff_t find_newline_no_quit (ptrdiff_t, ptrdiff_t,
                                        ptrdiff_t, ptrdiff_t *);
 extern ptrdiff_t find_before_next_newline (ptrdiff_t, ptrdiff_t,