QREMatchIterator: add support for range-based for

Add begin()/end() on QRegularExpressionMatchIterator, making
iterators over an iterator (like directory_iterator).

[ChangeLog][QtCore][QRegularExpression] The iterator object
(QRegularExpressionMatchIterator) returned by a global match
is now usable in a range-based for loop.

Change-Id: If3d31bd2e84e7d1fb626a0b3d2745914dff03e39
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/corelib/doc/snippets/code/src_corelib_text_qregularexpression.cpp b/src/corelib/doc/snippets/code/src_corelib_text_qregularexpression.cpp
index b451ed5253..c418a1f279 100644
--- a/src/corelib/doc/snippets/code/src_corelib_text_qregularexpression.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_text_qregularexpression.cpp
@@ -355,4 +355,13 @@ QString wildcard = QRegularExpression::wildcardToRegularExpression("*.jpeg");
     ("", "day", "month", "year", "", "name")
 //! [33]
 
+{
+//! [34]
+QRegularExpression re(R"(\w+)");
+QString subject("the quick fox");
+for (const QRegularExpressionMatch &match : re.globalMatch(subject)) {
+    // ...
+}
+//! [34]
+}
 }