Copy QDirIterator.{cpp,h} to QDirListing.{cpp,h}

To make it easier to follow the history in git.

Change-Id: I094056c1ec130aeef77aa2d20289ab766bc25083
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/src/corelib/doc/snippets/code/src_corelib_io_qdirlisting.cpp b/src/corelib/doc/snippets/code/src_corelib_io_qdirlisting.cpp
new file mode 100644
index 0000000000..ec3f3adc50
--- /dev/null
+++ b/src/corelib/doc/snippets/code/src_corelib_io_qdirlisting.cpp
@@ -0,0 +1,28 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+//! [0]
+QDirIterator it("/etc", QDirIterator::Subdirectories);
+while (it.hasNext()) {
+    QString dir = it.next();
+    qDebug() << dir;
+    // /etc/.
+    // /etc/..
+    // /etc/X11
+    // /etc/X11/fs
+    // ...
+}
+//! [0]
+
+//! [1]
+QDirIterator it("/sys", QStringList() << "scaling_cur_freq", QDir::NoFilter, QDirIterator::Subdirectories);
+while (it.hasNext()) {
+    QFile f(it.next());
+    f.open(QIODevice::ReadOnly);
+    qDebug() << f.fileName() << f.readAll().trimmed().toDouble() / 1000 << "MHz";
+}
+//! [1]
+
+//! [2]
+QDirIterator audioFileIt(audioPath, {"*.mp3", "*.wav"}, QDir::Files);
+//! [2]