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| author | Alex Blasche <alexander.blasche@theqtcompany.com> | 2016-03-01 14:07:24 +0100 |
|---|---|---|
| committer | Alex Blasche <alexander.blasche@theqtcompany.com> | 2016-03-02 09:26:47 +0000 |
| commit | 3a079a1e6761f3a26223e360d22530f22b5aeade (patch) | |
| tree | 3f97878218a5645a5f7ee836419ba2936028d7a9 /src/positioning | |
| parent | a6ce801018a4254efeab000efa2457317270939b (diff) | |
| download | qtlocation-3a079a1e6761f3a26223e360d22530f22b5aeade.tar.gz | |
Add hash function for QGeoCoordinate
[ChangeLog][QtPositioning][General] Added qHash(QGeoCoordinate()).
Task-number: QTBUG-51404
Change-Id: I02c6dc0a5399ebf3181b34ffa58a82a2119118a0
Reviewed-by: Paolo Angelelli <paolo.angelelli@theqtcompany.com>
Reviewed-by: Michal Klocek <michal.klocek@theqtcompany.com>
Diffstat (limited to 'src/positioning')
| -rw-r--r-- | src/positioning/qgeocoordinate.cpp | 17 | ||||
| -rw-r--r-- | src/positioning/qgeocoordinate.h | 2 |
2 files changed, 19 insertions, 0 deletions
diff --git a/src/positioning/qgeocoordinate.cpp b/src/positioning/qgeocoordinate.cpp index c71422ca..f28e1865 100644 --- a/src/positioning/qgeocoordinate.cpp +++ b/src/positioning/qgeocoordinate.cpp @@ -762,4 +762,21 @@ QDataStream &operator>>(QDataStream &stream, QGeoCoordinate &coordinate) } #endif +/*! \fn uint qHash(const QGeoCoordinate &coordinate, uint seed = 0) + \relates QHash + \since Qt 5.7 + + Returns a hash value for \a coordinate, using \a seed to seed the calculation. +*/ +uint qHash(const QGeoCoordinate &coordinate, uint seed) +{ + QtPrivate::QHashCombine hash; + // north and south pole are geographically equivalent (no matter the longitude) + if (coordinate.latitude() != 90.0 && coordinate.latitude() != -90.0) + seed = hash(seed, coordinate.longitude()); + seed = hash(seed, coordinate.latitude()); + seed = hash(seed, coordinate.altitude()); + return seed; +} + QT_END_NAMESPACE diff --git a/src/positioning/qgeocoordinate.h b/src/positioning/qgeocoordinate.h index 7b7a4c1f..ddb6274e 100644 --- a/src/positioning/qgeocoordinate.h +++ b/src/positioning/qgeocoordinate.h @@ -122,6 +122,8 @@ Q_DECLARE_TYPEINFO(QGeoCoordinate, Q_MOVABLE_TYPE); Q_POSITIONING_EXPORT QDebug operator<<(QDebug, const QGeoCoordinate &); #endif +Q_POSITIONING_EXPORT uint qHash(const QGeoCoordinate &coordinate, uint seed = 0); + #ifndef QT_NO_DATASTREAM Q_POSITIONING_EXPORT QDataStream &operator<<(QDataStream &stream, const QGeoCoordinate &coordinate); Q_POSITIONING_EXPORT QDataStream &operator>>(QDataStream &stream, QGeoCoordinate &coordinate); |