Add qHash(QLocale)

QLocales can be compared for equality,
so qHash should be overloaded, too.

[ChangeLog][QtCore][QLocale] Added qHash(QLocale).

Change-Id: Ia0fdf1207b842b9bb20b8f9ab0165016915debf4
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

2 files changed, 21 insertions, 0 deletions

diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp
index c2857d40a4..e598e95bb6 100644
--- a/src/corelib/tools/qlocale.cpp
+++ b/src/corelib/tools/qlocale.cpp
@@ -42,6 +42,7 @@
 
 #include "qdatastream.h"
 #include "qdebug.h"
+#include "qhashfunctions.h"
 #include "qstring.h"
 #include "qlocale.h"
 #include "qlocale_p.h"
@@ -866,6 +867,21 @@ bool QLocale::operator!=(const QLocale &other) const
 }
 
 /*!
+    \since 5.6
+    \relates QLocale
+
+    Returns the hash value for \a key, using
+    \a seed to seed the calculation.
+*/
+uint qHash(const QLocale &key, uint seed) Q_DECL_NOTHROW
+{
+    QtPrivate::QHashCombine hash;
+    seed = hash(seed, key.d->m_data);
+    seed = hash(seed, key.d->m_numberOptions);
+    return seed;
+}
+
+/*!
     \since 4.2
 
     Sets the \a options related to number conversions for this
diff --git a/src/corelib/tools/qlocale.h b/src/corelib/tools/qlocale.h
index 61574ba44f..a622bbafeb 100644
--- a/src/corelib/tools/qlocale.h
+++ b/src/corelib/tools/qlocale.h
@@ -45,6 +45,7 @@ QT_BEGIN_NAMESPACE
 class QDataStream;
 class QDate;
 class QDateTime;
+class QLocale;
 class QTime;
 class QVariant;
 class QTextStream;
@@ -52,6 +53,8 @@ class QTextStreamPrivate;
 
 class QLocalePrivate;
 
+Q_CORE_EXPORT uint qHash(const QLocale &key, uint seed = 0) Q_DECL_NOTHROW;
+
 class Q_CORE_EXPORT QLocale
 {
     Q_GADGET
@@ -979,6 +982,8 @@ public:
 private:
     QLocale(QLocalePrivate &dd);
     friend class QLocalePrivate;
+    friend Q_CORE_EXPORT uint qHash(const QLocale &key, uint seed) Q_DECL_NOTHROW;
+
     QSharedDataPointer<QLocalePrivate> d;
 };
 Q_DECLARE_TYPEINFO(QLocale, Q_MOVABLE_TYPE);