QStringView: add mid(), left(), right()

Change-Id: If1d2cf175d51b3c02881e21937b0a2d33b78aadd
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Ville Voutilainen <ville.voutilainen@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 46 insertions, 0 deletions

diff --git a/src/corelib/tools/qstringview.cpp b/src/corelib/tools/qstringview.cpp
index fe00965a5c..ec77e11740 100644
--- a/src/corelib/tools/qstringview.cpp
+++ b/src/corelib/tools/qstringview.cpp
@@ -548,4 +548,50 @@ QT_BEGIN_NAMESPACE
     \sa back(), front(), first()
 */
 
+/*!
+    \fn QStringView QStringView::mid(size_type start) const
+
+    Returns the substring starting at position \a start in this object,
+    and extending to the end of the string.
+
+    \note The behavior is undefined when \a start < 0 or \a start > size().
+
+    \sa left(), right()
+*/
+
+/*!
+    \fn QStringView QStringView::mid(size_type start, size_type length) const
+    \overload
+
+    Returns the substring of length \a length starting at position
+    \a start in this object.
+
+    \note The behavior is undefined when \a start < 0, \a length < 0,
+    or \a start + \a length > size().
+
+    \sa left(), right()
+*/
+
+/*!
+    \fn QStringView QStringView::left(size_type length) const
+
+    Returns the substring of length \a length starting at position
+    0 in this object.
+
+    \note The behavior is undefined when \a length < 0 or \a length > size().
+
+    \sa mid(), right()
+*/
+
+/*!
+    \fn QStringView QStringView::right(size_type length) const
+
+    Returns the substring of length \a length starting at position
+    size() - \a length in this object.
+
+    \note The behavior is undefined when \a length < 0 or \a length > size().
+
+    \sa mid(), left()
+*/
+
 QT_END_NAMESPACE