1 files changed, 50 insertions, 0 deletions
diff --git a/week11/Exercise04/String.cpp b/week11/Exercise04/String.cpp
new file mode 100644
index 0000000..e9cdd94
--- /dev/null
+++ b/week11/Exercise04/String.cpp
@@ -0,0 +1,50 @@
+#include "String.h"
+#include <cstring>
+
+void String::free() {
+	delete[] str;
+}
+
+void String::copyFrom(const String& other) {
+	this->str = new char[strlen(other.str) + 1];
+	strcpy(this->str, other.str);
+}
+
+String::String() {
+	this->str = nullptr;
+}
+
+String::~String() {
+	free();
+}
+
+String::String(const String& other) {
+	copyFrom(other);
+}
+
+String& String::operator=(const String& other) {
+	if (this != &other) {
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+
+String::String(String&& other) {
+	this->str = other.str;
+	other.str = nullptr;
+}
+
+String& String::operator=(String&& other) {
+	if (this != &other) {
+		free();
+
+		this->str = other.str;
+		other.str = nullptr;
+	}
+	return *this;
+}
+
+unsigned String::Length() {
+	return strlen(str);
+}