Polish the samplebinding example

- Use a std::shared_ptr for internal storage.
- Simplify copy and assignment.
- Fix constness of the flavor accessor
- Add ostream operator to IceCream

Pick-to: 6.2
Change-Id: I814fa14095cbb96ab5642735e16b8b50101d4771
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

1 files changed, 7 insertions, 5 deletions

diff --git a/examples/samplebinding/icecream.h b/examples/samplebinding/icecream.h
index 1997fdc49..7c1d1cbdb 100644
--- a/examples/samplebinding/icecream.h
+++ b/examples/samplebinding/icecream.h
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2018 The Qt Company Ltd.
+** Copyright (C) 2022 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the Qt for Python examples of the Qt Toolkit.
@@ -51,21 +51,23 @@
 #ifndef ICECREAM_H
 #define ICECREAM_H
 
-#include <string>
-
 #include "macros.h"
 
+#include <iosfwd>
+#include <string>
+
 class BINDINGS_API Icecream
 {
 public:
-    Icecream(const std::string &flavor);
+    explicit Icecream(const std::string &flavor);
     virtual Icecream *clone();
     virtual ~Icecream();
-    virtual const std::string getFlavor();
+    virtual std::string getFlavor() const;
 
 private:
     std::string m_flavor;
 };
 
+std::ostream &operator<<(std::ostream &str, const Icecream &i);
 
 #endif // ICECREAM_H