QCryptographicHash: allow to hash the content of a QIODevice

This adds a new function (and tests) to give the possibility of doing a
QCryptographicHash of a QIODevice, like a QFile or whatever people
needs.

It is a quite handy overload in many cases.

Change-Id: I22fd272f05571844641b3daefcc6746be4e5c7c3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/corelib/tools/qcryptographichash.h b/src/corelib/tools/qcryptographichash.h
index b40e8cc25b..15ebd22418 100644
--- a/src/corelib/tools/qcryptographichash.h
+++ b/src/corelib/tools/qcryptographichash.h
@@ -51,6 +51,7 @@ QT_BEGIN_NAMESPACE
 QT_MODULE(Core)
 
 class QCryptographicHashPrivate;
+class QIODevice;
 
 class Q_CORE_EXPORT QCryptographicHash
 {
@@ -68,6 +69,7 @@ public:
 
     void addData(const char *data, int length);
     void addData(const QByteArray &data);
+    bool addData(QIODevice* device);
 
     QByteArray result() const;