From 67cbd430bfcdae585b7fa36a116d489b071b36e3 Mon Sep 17 00:00:00 2001
From: "Zed A. Shaw" <zed.shaw@gmail.com>
Date: Sat, 4 May 2024 21:06:10 -0400
Subject: [PATCH] Exploring optional return values.

---
 PPP3/ex08.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/PPP3/ex08.cpp b/PPP3/ex08.cpp
index e467e6d..1dc5827 100644
--- a/PPP3/ex08.cpp
+++ b/PPP3/ex08.cpp
@@ -1,8 +1,31 @@
 #include <iostream>
+#include <optional>
+#include <string>
 
 using namespace std;
 
+optional<string> create(bool b)
+{
+  if(b) {
+    return "Godzilla";
+  } else {
+    return {};
+  }
+}
+
+auto create2(bool b)
+{
+  return b ? optional<string>{"Godzilla"} : nullopt;
+}
+
 int main()
 {
+  cout << "create(false) returned "
+    << create(false).value_or("empty") << "\n";
+
+  if(auto str = create2(true)) {
+    cout << "create2(true) returned " << *str << " with size " << str->size() << "\n";
+  }
+
   return 0;
 }