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, 2 insertions, 2 deletions

diff --git a/src/corelib/plugin/quuid.cpp b/src/corelib/plugin/quuid.cpp
index 83873edf6f..fc70ca1386 100644
--- a/src/corelib/plugin/quuid.cpp
+++ b/src/corelib/plugin/quuid.cpp
@@ -1089,7 +1089,7 @@ QDebug operator<<(QDebug dbg, const QUuid &id)
     \relates QUuid
     Returns a hash of the UUID \a uuid, using \a seed to seed the calculation.
 */
-uint qHash(const QUuid &uuid, uint seed) noexcept
+size_t qHash(const QUuid &uuid, size_t seed) noexcept
 {
     return uuid.data1 ^ uuid.data2 ^ (uuid.data3 << 16)
             ^ ((uuid.data4[0] << 24) | (uuid.data4[1] << 16) | (uuid.data4[2] << 8) | uuid.data4[3])
diff --git a/src/corelib/plugin/quuid.h b/src/corelib/plugin/quuid.h
index 713ca070c8..bdd74f4b77 100644
--- a/src/corelib/plugin/quuid.h
+++ b/src/corelib/plugin/quuid.h
@@ -243,7 +243,7 @@ Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QUuid &);
 Q_CORE_EXPORT QDebug operator<<(QDebug, const QUuid &);
 #endif
 
-Q_CORE_EXPORT uint qHash(const QUuid &uuid, uint seed = 0) noexcept;
+Q_CORE_EXPORT size_t qHash(const QUuid &uuid, size_t seed = 0) noexcept;
 
 inline bool operator<=(const QUuid &lhs, const QUuid &rhs) noexcept
 { return !(rhs < lhs); }