From 8dcfca2d62f1e17ef515d293d1a73353e16377db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kjist=C3=B3f?= <mrtoth@strongds.hu>
Date: Sun, 23 Oct 2016 15:27:00 +0200
Subject: [PATCH] made a char wrapper: Char, which implements copy-on-write for
 String

---
 Char.cpp | 20 ++++++++++++++++++++
 Char.h   | 20 ++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 Char.cpp
 create mode 100644 Char.h

diff --git a/Char.cpp b/Char.cpp
new file mode 100644
index 0000000..e610e01
--- /dev/null
+++ b/Char.cpp
@@ -0,0 +1,20 @@
+#include "Char.h"
+#include <cstring>
+
+
+
+Char::operator char() const
+{ return _string._str->operator[](_index); }
+
+Char& Char::operator=(char other)
+{
+    auto data = new char[_string.size() + 2];   // space for new char & null-terminator
+    std::strcpy(data, _string.c_str());
+    data[_index] = other;
+
+
+    _string._str->operator--();
+    _string._str = new StringValue(data);
+
+    return *this;
+}
\ No newline at end of file
diff --git a/Char.h b/Char.h
new file mode 100644
index 0000000..fb5cdc4
--- /dev/null
+++ b/Char.h
@@ -0,0 +1,20 @@
+#pragma once
+#include "String.h"
+class String;
+class StringValue;
+
+
+
+class Char
+{
+private:
+
+    size_t _index;
+    String& _string;
+
+public:
+
+    Char(size_t index, String& string) :_index(index), _string(string) {}
+    operator char() const;
+    Char& operator=(char other);
+};
\ No newline at end of file