Introduce std::string conversion to QByteArray

Add conversion methods similar to those in QString to QByteArray. This
is often more useful than the QString version since std::string like
QByteArray are byte arrays.

[ChangeLog][QtCore][QByteArray] Added convenience methods to convert
directly to and from std::string.

Change-Id: I92c29d4bb1d9e06a667dd9cdd936970e2d272006
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/corelib/tools/qbytearray.cpp b/src/corelib/tools/qbytearray.cpp
index 6fed3ae5c9..7ca47961c0 100644
--- a/src/corelib/tools/qbytearray.cpp
+++ b/src/corelib/tools/qbytearray.cpp
@@ -4189,6 +4189,27 @@ QByteArray QByteArray::fromPercentEncoding(const QByteArray &input, char percent
     return tmp;
 }
 
+/*! \fn QByteArray QByteArray::fromStdString(const std::string &str)
+    \since 5.4
+
+    Returns a copy of the \a str string as a QByteArray.
+
+    \sa toStdString(), QString::fromStdString()
+*/
+
+/*!
+    \fn std::string QByteArray::toStdString() const
+    \since 5.4
+
+    Returns a std::string object with the data contained in this
+    QByteArray.
+
+    This operator is mostly useful to pass a QByteArray to a function
+    that accepts a std::string object.
+
+    \sa fromStdString(), QString::toStdString()
+*/
+
 /*! \fn QByteArray QByteArray::fromCFData(CFDataRef data)
     \since 5.3