From 7b19cabee8b08478f31f6e4594ed28e1d04e153c Mon Sep 17 00:00:00 2001
From: Syndamia <kamen@syndamia.com>
Date: Fri, 10 May 2024 10:10:21 +0300
Subject: [w11] Solved exercises

---
 week11/Exercise07/String.cpp | 49 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 week11/Exercise07/String.cpp

(limited to 'week11/Exercise07/String.cpp')

diff --git a/week11/Exercise07/String.cpp b/week11/Exercise07/String.cpp
new file mode 100644
index 0000000..8406f3c
--- /dev/null
+++ b/week11/Exercise07/String.cpp
@@ -0,0 +1,49 @@
+#include "String.h"
+#include <cstring>
+
+char& String::operator[](int index) {
+	if (index <= 1) throw "Invalid index";
+
+	for (int i = 0; i < size; i++) {
+		if ('A' <= elems[i] && elems[i] <= 'Z') {
+			index--;
+			if (index == 0) {
+				return elems[i];
+			}
+		}
+	}
+	return elems[size-1];
+}
+
+const char& String::operator[](int index) const {
+	if (index <= 1) throw "Invalid index";
+
+	for (int i = 0; i < size; i++) {
+		if ('A' <= elems[i] && elems[i] <= 'Z') {
+			index--;
+			if (index == 0) {
+				return elems[i];
+			}
+		}
+	}
+	return elems[size-1];
+}
+
+String& String::operator+=(const String& other) {
+	char* biggerStr = new char[allocated + other.allocated];
+	for (int i = 0; i < size; i++) {
+		biggerStr[i] = elems[i];
+	}
+	for (int i = 0; i < other.size; i++) {
+		biggerStr[size + i] = other.elems[i];
+	}
+	delete[] elems;
+	elems = biggerStr;
+	allocated += other.allocated;
+	size += other.size;
+	return *this;
+}
+
+DynamicArray<char>& String::operator+=(const DynamicArray<char>& other) {
+	return *this += (const String&)other;
+}
-- 
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