From 1d73dd181e5747d171266815ece53c6fc241c10c Mon Sep 17 00:00:00 2001
From: Ian Dinwoodie <dinwoodieian@gmail.com>
Date: Mon, 29 Apr 2019 20:06:13 -0400
Subject: [PATCH] Added singleton example source code.

---
 examples/creational/singleton.cpp | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 examples/creational/singleton.cpp

diff --git a/examples/creational/singleton.cpp b/examples/creational/singleton.cpp
new file mode 100644
index 0000000..a409755
--- /dev/null
+++ b/examples/creational/singleton.cpp
@@ -0,0 +1,31 @@
+#include <assert.h>
+
+class President
+{
+  public:
+    static President& getInstance()
+    {
+      static President instance;
+      return instance;
+    }
+
+  private:
+    President()
+    {
+    }
+
+    ~President()
+    {
+    }
+};
+
+int main()
+{
+  President& president1 = President::getInstance();
+  President& president2 = President::getInstance();
+
+  // There can only be 1 president, so they must be the same.
+  assert(&president1 == &president2);
+
+  return 0;
+}