Avoid extra calls to strlen in filesystem I/O routines.

* fileio.c (Fexpand_file_name): Avoid calls to strlen if
the length of 'newdir' is known or may be precalculated.
(file_accessible_directory_p): Prefer to pass Lisp_Object,
not 'char *', and so use precalculated length.
(Ffile_accessible_directory_p):
* callproc.c (encode_current_directory, init_callproc):
* charset.c (init_charset):
* lread.c (load_path_check, load_path_default): Adjust users.
* lisp.h (file_accessible_directory_p): Tweak prototype.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 02435801d69..a5ec9c35efa 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,16 @@
+2014-09-01  Dmitry Antipov  <dmantipov@yandex.ru>
+
+        Avoid extra calls to strlen in filesystem I/O routines.
+        * fileio.c (Fexpand_file_name): Avoid calls to strlen if
+        the length of 'newdir' is known or may be precalculated.
+        (file_accessible_directory_p): Prefer to pass Lisp_Object,
+        not 'char *', and so use precalculated length.
+        (Ffile_accessible_directory_p):
+        * callproc.c (encode_current_directory, init_callproc):
+        * charset.c (init_charset):
+        * lread.c (load_path_check, load_path_default): Adjust users.
+        * lisp.h (file_accessible_directory_p): Tweak prototype.
+
 2014-09-01  Eli Zaretskii  <eliz@gnu.org>
 
         * w32proc.c (w32_compare_strings): Support "C" and "POSIX"