Update copyright statements.

[ginac.git] / ginac / wildcard.cpp

diff --git a/ginac/wildcard.cpp b/ginac/wildcard.cpp
index 6f96a04685488a2d61c3edab3524e2876f31833e..c691e33585f5cf6fb49d64329c22cda765cd2430 100644 (file)
--- a/ginac/wildcard.cpp
+++ b/ginac/wildcard.cpp
@@ -3,7 +3,7 @@
  *  Implementation of GiNaC's wildcard objects. */
 
 /*
- *  GiNaC Copyright (C) 1999-2009 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2014 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
@@ -23,6 +23,7 @@
 #include "wildcard.h"
 #include "archive.h"
 #include "utils.h"
+#include "hash_seed.h"
 
 #include <iostream>
 
@@ -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;
 }