Improve hashing quality when configured --with-wide-int.

* fns.c (hash_string): New function, taken from sxhash_string.
Do not discard information about ASCII character case; this
discarding is no longer needed.
(sxhash-string): Use it.  Change sig to match it.  Caller changed.
* lisp.h: Declare it.
* lread.c (hash_string): Remove, since we now use fns.c's version.
The fns.c version returns a wider integer if --with-wide-int is
specified, so this should help the quality of the hashing a bit.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 0265828c60e..aaf87deb9a5 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,15 @@
+2011-07-08  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Improve hashing quality when configured --with-wide-int.
+        * fns.c (hash_string): New function, taken from sxhash_string.
+        Do not discard information about ASCII character case; this
+        discarding is no longer needed.
+        (sxhash-string): Use it.  Change sig to match it.  Caller changed.
+        * lisp.h: Declare it.
+        * lread.c (hash_string): Remove, since we now use fns.c's version.
+        The fns.c version returns a wider integer if --with-wide-int is
+        specified, so this should help the quality of the hashing a bit.
+
 2011-07-07  Paul Eggert  <eggert@cs.ucla.edu>
 
         * emacs.c: Integer overflow minor fix.