diff options
| author | Sérgio Martins <sergio.martins@kdab.com> | 2015-06-24 14:34:45 +0100 |
|---|---|---|
| committer | Sérgio Martins <sergio.martins@kdab.com> | 2015-06-27 11:48:33 +0000 |
| commit | a5306c35d1cf1e471e2a073aa1ba279081ea47ee (patch) | |
| tree | fc0bb6dd2e40cbcf92286121cd9a4bf5283ba775 /src/corelib/tools/qlist.cpp | |
| parent | a8a8cdd24b99f1d984e8395d77025d1d11817afd (diff) | |
QList: Introduce constFirst() and constEnd()
Allows to easily prevent detaching in common code like: getList().first()
[ChangeLog][QtCore][QList] Added the convenience constFirst and constLast functions.
Task-number: QTBUG-46026
Change-Id: I51ecb51fe91fc7d993ad35b5c7392f4da88e5f7b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/tools/qlist.cpp')
| -rw-r--r-- | src/corelib/tools/qlist.cpp | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/corelib/tools/qlist.cpp b/src/corelib/tools/qlist.cpp index f4901d336e..d774548d3a 100644 --- a/src/corelib/tools/qlist.cpp +++ b/src/corelib/tools/qlist.cpp @@ -1227,7 +1227,7 @@ void **QListData::erase(void **xi) not be empty. If the list can be empty, call isEmpty() before calling this function. - \sa last(), isEmpty() + \sa constFirst(), last(), isEmpty() */ /*! \fn const T& QList::first() const @@ -1235,13 +1235,23 @@ void **QListData::erase(void **xi) \overload */ +/*! \fn const T& QList::constFirst() const + \since 5.6 + + Returns a const reference to the first item in the list. The list must + not be empty. If the list can be empty, call isEmpty() before + calling this function. + + \sa constLast(), isEmpty(), first() +*/ + /*! \fn T& QList::last() Returns a reference to the last item in the list. The list must not be empty. If the list can be empty, call isEmpty() before calling this function. - \sa first(), isEmpty() + \sa constLast(), first(), isEmpty() */ /*! \fn const T& QList::last() const @@ -1249,6 +1259,16 @@ void **QListData::erase(void **xi) \overload */ +/*! \fn const T& QList::constLast() const + \since 5.6 + + Returns a reference to the last item in the list. The list must + not be empty. If the list can be empty, call isEmpty() before + calling this function. + + \sa constFirst(), isEmpty(), last() +*/ + /*! \fn void QList::removeFirst() Removes the first item in the list. Calling this function is |