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, 7 insertions, 0 deletions

diff --git a/src/corelib/tools/qbytearray.cpp b/src/corelib/tools/qbytearray.cpp
index 6ba9fd3..dc2e8e9 100644
--- a/src/corelib/tools/qbytearray.cpp
+++ b/src/corelib/tools/qbytearray.cpp
@@ -904,6 +904,13 @@ QByteArray &QByteArray::operator=(const char *str)
     return *this;
 }
 
+/*! \fn void QByteArray::swap(QByteArray &other)
+    \since 4.8
+
+    Swaps byte array \a other with this byte array. This operation is very
+    fast and never fails.
+*/
+
 /*! \fn int QByteArray::size() const
 
     Returns the number of bytes in this byte array.