feat(Week09): Add solutions

1 files changed, 75 insertions, 0 deletions

diff --git a/Week09/Exercise05/String.cpp b/Week09/Exercise05/String.cpp
new file mode 100644
index 0000000..903aa60
--- /dev/null
+++ b/Week09/Exercise05/String.cpp
@@ -0,0 +1,75 @@
+#include "String.h"
+#include <cstring>
+#include <iostream>
+
+void String::free() {
+	delete[] str;
+}
+
+void String::copyFrom(const String& other) {
+	length = other.length;
+	// Не забравяме за терминиращата нула
+	str = new char[length + 1];
+	strcpy(str, other.str);
+}
+
+String::String() {
+	str = nullptr;
+	length = 0;
+}
+
+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) {
+	str = other.str;
+	length = other.length;
+
+	other.str = nullptr;
+	other.length = 0;
+}
+
+String& String::operator=(String&& other) {
+	if (this != &other) {
+		free();
+
+		str = other.str;
+		length = other.length;
+
+		other.str = nullptr;
+		other.length = 0;
+	}
+	return *this;
+}
+
+String::String(unsigned length) {
+	this->length = length;
+	this->str = new char[length + 1];
+	this->str[length] = '\0';
+}
+
+void String::Copy(const char* str) {
+	if (this->str == nullptr) {
+		length = strlen(str);
+		this->str = new char[length + 1];
+	}
+	strncpy(this->str, str, length);
+	this->str[length] = '\0';
+}
+
+const char* String::GetStr() const {
+	return str;
+}