Added my prep work for exam2

1 files changed, 36 insertions, 0 deletions

diff --git a/Year 1/Object-oriented Programming/Exam 2 Preparation/String.cpp b/Year 1/Object-oriented Programming/Exam 2 Preparation/String.cpp
new file mode 100644
index 0000000..84c0046
--- /dev/null
+++ b/Year 1/Object-oriented Programming/Exam 2 Preparation/String.cpp
@@ -0,0 +1,36 @@
+#include "String.h"
+#include <cstring>
+
+void String::copyFrom(const String& other) {
+	length = other.length;
+	str = new char[length];
+	strncpy(str, other.str, length);
+}
+
+void String::free() {
+	delete[] str;
+}
+
+String::String(const char* str) {
+	length = strlen(str);
+	this->str = new char[length + 1];
+	strncpy(this->str, str, length + 1);
+}
+
+String::String() : String("") {}
+
+String::String(const String& other) {
+	copyFrom(other);
+}
+
+String& String::operator=(const String& other) {
+	if (this != &other) {
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+
+String::~String() {
+	free();
+}