diff options
author | Thorbjørn Lund Martsum <tmartsum@gmail.com> | 2012-10-28 15:36:11 +0100 |
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committer | The Qt Project <gerrit-noreply@qt-project.org> | 2012-10-29 22:21:32 +0100 |
commit | af437047a2d849d19f8de01b5ecfb685f813d6a2 (patch) | |
tree | 50a8763dc6f74dd92fb0c9409b75531fa64b8694 /tests/benchmarks | |
parent | 3a333f2d92a44feba017c7951049e89adbbda686 (diff) |
QMap - improve QMap stl-map ctor
We can insert directly on the most left-most Node.
We always enforce an insert here (unlike the insert call),
but that is not a problem since the keys in a std::map are unique.
Change-Id: Ib409b90ffc57a5a43dab4a4b08d34f6fdabd057f
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Diffstat (limited to 'tests/benchmarks')
-rw-r--r-- | tests/benchmarks/corelib/tools/qmap/main.cpp | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/tools/qmap/main.cpp b/tests/benchmarks/corelib/tools/qmap/main.cpp index 4d9833b7a1..c11e54ff1d 100644 --- a/tests/benchmarks/corelib/tools/qmap/main.cpp +++ b/tests/benchmarks/corelib/tools/qmap/main.cpp @@ -62,6 +62,8 @@ private slots: void iteration(); void toStdMap(); void iterator_begin(); + + void ctorStdMap(); }; @@ -189,6 +191,19 @@ void tst_QMap::iterator_begin() } } +void tst_QMap::ctorStdMap() +{ + std::map<int, int> map; + for (int i = 0; i < 100000; ++i) + map.insert(std::pair<int, int>(i, i)); + + QBENCHMARK { + QMap<int, int> qmap(map); + qmap.constBegin(); + } +} + + QTEST_MAIN(tst_QMap) #include "main.moc" |