[w10] Added rough solutions to ex 1-10

1 files changed, 71 insertions, 0 deletions

diff --git a/week10/Exercise10/String.cpp b/week10/Exercise10/String.cpp
new file mode 100644
index 0000000..7fd689f
--- /dev/null
+++ b/week10/Exercise10/String.cpp
@@ -0,0 +1,71 @@
+#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() {
+	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;
+}
+
+String& String::operator=(String&& other) {
+	if (this != &other) {
+		free();
+
+		this->str = other.str;
+	}
+	return *this;
+}
+
+bool operator==(const String& left, const String& right) {
+	int i;
+	for (i = 0; left.str[i] != '\0' && right.str[i] != '\0'; i++) {
+		if (left.str[i] != right.str[i])
+			return false;
+	}
+	return left.str[i] == '\0' && right.str[i] == '\0';
+}
+
+bool operator!=(const String& left, const String& right) {
+	return !(left == right);
+}
+
+String operator+(const String& left, const String& right) {
+	String concat;
+	concat.str = new char[strlen(left.str) + strlen(right.str) + 1];
+	int i;
+	for (i = 0; left.str[i] != '\0'; i++) {
+		concat.str[i] = left.str[i];
+	}
+	int j;
+	for (j = 0; right.str[j] != '\0'; j++) {
+		concat.str[i+j] = right.str[j];
+	}
+	return concat;
+}