Change qHash() to work with size_t instead of uint

This is required, so that QHash and QSet can hold more
than 2^32 items on 64 bit platforms.

The actual hashing functions for strings are still 32bit, this will
be changed in a follow-up commit.

Change-Id: I4372125252486075ff3a0b45ecfa818359fe103b
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

2 files changed, 3 insertions, 3 deletions

diff --git a/src/network/kernel/qhostaddress.cpp b/src/network/kernel/qhostaddress.cpp
index ed1c23ed6e..b9fc129685 100644
--- a/src/network/kernel/qhostaddress.cpp
+++ b/src/network/kernel/qhostaddress.cpp
@@ -1333,7 +1333,7 @@ QDebug operator<<(QDebug d, const QHostAddress &address)
     \relates QHostAddress
     Returns a hash of the host address \a key, using \a seed to seed the calculation.
 */
-uint qHash(const QHostAddress &key, uint seed) noexcept
+size_t qHash(const QHostAddress &key, size_t seed) noexcept
 {
     return qHashBits(key.d->a6.c, 16, seed);
 }
diff --git a/src/network/kernel/qhostaddress.h b/src/network/kernel/qhostaddress.h
index 799247695e..ffa08aca30 100644
--- a/src/network/kernel/qhostaddress.h
+++ b/src/network/kernel/qhostaddress.h
@@ -66,7 +66,7 @@ typedef QIPv6Address Q_IPV6ADDR;
 
 class QHostAddress;
 // qHash is a friend, but we can't use default arguments for friends (§8.3.6.4)
-Q_NETWORK_EXPORT uint qHash(const QHostAddress &key, uint seed = 0) noexcept;
+Q_NETWORK_EXPORT size_t qHash(const QHostAddress &key, size_t seed = 0) noexcept;
 
 class Q_NETWORK_EXPORT QHostAddress
 {
@@ -154,7 +154,7 @@ public:
 
     static QPair<QHostAddress, int> parseSubnet(const QString &subnet);
 
-    friend Q_NETWORK_EXPORT uint qHash(const QHostAddress &key, uint seed) noexcept;
+    friend Q_NETWORK_EXPORT size_t qHash(const QHostAddress &key, size_t seed) noexcept;
 protected:
     friend class QHostAddressPrivate;
     QExplicitlySharedDataPointer<QHostAddressPrivate> d;