qHash: always use the seed in the catch-all template

This pertubates the results of the calls to the one-argument
version of qHash through the catch-all template.

Change-Id: I7037b25d545e6f1360384a83ff895f4bb62ed195
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>

diff --git a/src/corelib/tools/qhash.h b/src/corelib/tools/qhash.h
index 8fe66aa..42c33f6 100644 (file)
--- a/src/corelib/tools/qhash.h
+++ b/src/corelib/tools/qhash.h
@@ -109,7 +109,7 @@ template <typename T1, typename T2> inline uint qHash(const QPair<T1, T2> &key)
     return ((h1 << 16) | (h1 >> 16)) ^ h2;
 }
 
-template<typename T> inline uint qHash(const T &t, uint) { return qHash(t); }
+template<typename T> inline uint qHash(const T &t, uint seed) { return (qHash(t) ^ seed); }
 
 struct Q_CORE_EXPORT QHashData
 {