X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;f=ginac%2Fwildcard.cpp;h=d45ffca038ab5ff98505464b4f5c70318f7d615f;hb=cd22e73d44e3320898f62a0accdbbe005b33d3e5;hp=9409938d1e6de86a9b61f9fc7d9b22376f14ba92;hpb=d327f3f00c66a79d42855939866047b3e8caa630;p=ginac.git

diff --git a/ginac/wildcard.cpp b/ginac/wildcard.cpp
index 9409938d..d45ffca0 100644
--- a/ginac/wildcard.cpp
+++ b/ginac/wildcard.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's wildcard objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2008 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2016 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -20,11 +20,12 @@
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <iostream>
-
 #include "wildcard.h"
 #include "archive.h"
 #include "utils.h"
+#include "hash_seed.h"
+
+#include <iostream>
 
 namespace GiNaC {
 
@@ -106,8 +107,8 @@ unsigned wildcard::calchash() const
 	// this is where the schoolbook method
 	// (golden_ratio_hash(typeid(*this).name()) ^ label)
 	// is not good enough yet...
-	const void* this_tinfo = (const void*)typeid(*this).name();
-	hashvalue = golden_ratio_hash(golden_ratio_hash((p_int)this_tinfo) ^ label);
+	unsigned seed = make_hash_seed(typeid(*this));
+	hashvalue = golden_ratio_hash(seed ^ label);
 	setflag(status_flags::hash_calculated);
 	return hashvalue;
 }