QByteArray/QString: add resizeForOverwrite

For these classes it's not really a new feature, but exposing
the current resize() behavior (which does uninitialized resizes)
under a proper name.

Changing the existing behavior for resize() is a behavioral
break that we can only likely afford in Qt 7.

[ChangeLog][QtCore][QString] Added resizeForOverwrite().
[ChangeLog][QtCore][QByteArray] Added resizeForOverwrite().

Change-Id: I15b3104aee2bc29d23e91d97b0e64f87612d0099
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/corelib/text/qbytearray.cpp b/src/corelib/text/qbytearray.cpp
index 1eb5c5b2d2..3df77f179c 100644
--- a/src/corelib/text/qbytearray.cpp
+++ b/src/corelib/text/qbytearray.cpp
@@ -1897,6 +1897,21 @@ void QByteArray::resize(qsizetype newSize, char c)
 }
 
 /*!
+    \since 6.8
+
+    Resizes the byte array to \a size bytes. If the size of the
+    byte array grows, the new bytes are uninitialized.
+
+    The behavior is identical to \c{resize(size)}.
+
+    \sa resize()
+*/
+void QByteArray::resizeForOverwrite(qsizetype size)
+{
+    resize(size);
+}
+
+/*!
     Sets every byte in the byte array to \a ch. If \a size is different from -1
     (the default), the byte array is resized to size \a size beforehand.