Containers: add member-swap

Member-swap is required by the STL Sequence concept, but is also needed to write exception-safe code.

Merge-request: 871
Reviewed-by: Olivier Goffart <olivier.goffart@nokia.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/auto/qcontiguouscache/tst_qcontiguouscache.cpp b/tests/auto/qcontiguouscache/tst_qcontiguouscache.cpp
index f64e815..568ba06 100644
--- a/tests/auto/qcontiguouscache/tst_qcontiguouscache.cpp
+++ b/tests/auto/qcontiguouscache/tst_qcontiguouscache.cpp
@@ -55,6 +55,8 @@ public:
     virtual ~tst_QContiguousCache() {}
 private slots:
     void empty();
+    void swap();
+
     void append_data();
     void append();
 
@@ -99,6 +101,17 @@ void tst_QContiguousCache::empty()
     QCOMPARE(c.capacity(), 10);
 }
 
+void tst_QContiguousCache::swap()
+{
+    QContiguousCache<int> c1(10), c2(100);
+    c1.append(1);
+    c1.swap(c2);
+    QCOMPARE(c1.capacity(), 100);
+    QCOMPARE(c1.count(),    0  );
+    QCOMPARE(c2.capacity(), 10 );
+    QCOMPARE(c2.count(),    1  );
+}
+
 void tst_QContiguousCache::append_data()
 {
     QTest::addColumn<int>("start");