Avoid character to byte conversions in motion subroutines.

* indent.h (compute_motion, vmotion): Add byte position argument.
* indent.c (compute_motion): Use it and avoid CHAR_TO_BYTE.
Add eassert.
(Fcompute_motion): Break long line.  Adjust call to compute_motion.
Use list5 for return value.
(vmotion): Use byte position argument and avoid call to CHAR_TO_BYTE.
Adjust comments, style and calls to compute_motion.
(Fvertical_motion): Adjust call to vmotion.
* window.c (Fdelete_other_windows_internal): Record window start
byte position and adjust call to vmotion.
(window_scroll_line_based): Likewise with call to compute_motion.
Use SET_PT_BOTH.
(Frecenter): Adjust calls to vmotion.

1 files changed, 17 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index eee20d998dd..bc106df0cb2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,22 @@
 2013-03-07  Dmitry Antipov  <dmantipov@yandex.ru>
 
+        Avoid character to byte conversions in motion subroutines.
+        * indent.h (compute_motion, vmotion): Add byte position argument.
+        * indent.c (compute_motion): Use it and avoid CHAR_TO_BYTE.
+        Add eassert.
+        (Fcompute_motion): Break long line.  Adjust call to compute_motion.
+        Use list5 for return value.
+        (vmotion): Use byte position argument and avoid call to CHAR_TO_BYTE.
+        Adjust comments, style and calls to compute_motion.
+        (Fvertical_motion): Adjust call to vmotion.
+        * window.c (Fdelete_other_windows_internal): Record window start
+        byte position and adjust call to vmotion.
+        (window_scroll_line_based): Likewise with call to compute_motion.
+        Use SET_PT_BOTH.
+        (Frecenter): Adjust calls to vmotion.
+
+2013-03-07  Dmitry Antipov  <dmantipov@yandex.ru>
+
         * lisp.h (list2i, list3i): New functions.
         (list4i): Move from window.c and make LISP_INLINE.
         * editfns.c (make_lisp_time):