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

[bpt/emacs.git] / src / ChangeLog

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+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.