From 0964b60f917392f7a827b3b2090cc2188d08f1fd Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 30 Aug 2006 03:02:35 +0000
Subject: * numeric.c (flo_hash): improve collision.

* string.c (rb_memhash): new generic function to calculate hash value
  for memory chunk.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@10798 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 numeric.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'numeric.c')

diff --git a/numeric.c b/numeric.c
index 3000158be..255b6b52b 100644
--- a/numeric.c
+++ b/numeric.c
@@ -836,15 +836,11 @@ static VALUE
 flo_hash(VALUE num)
 {
     double d;
-    char *c;
-    int i, hash;
+    int hash;
 
     d = RFLOAT(num)->value;
     if (d == 0) d = fabs(d);
-    c = (char*)&d;
-    for (hash=0, i=0; i<sizeof(double);i++) {
-	hash += c[i] * 971;
-    }
+    hash = rb_memhash(&d, sizeof(d)) ^ RBASIC(num)->klass;
     if (hash < 0) hash = -hash;
     return INT2FIX(hash);
 }
-- 
cgit