[w8] Added exercise descriptions and solutions to ex 1-7

1 files changed, 97 insertions, 0 deletions

diff --git a/week08/Exercise7.cpp b/week08/Exercise7.cpp
new file mode 100644
index 0000000..60640b0
--- /dev/null
+++ b/week08/Exercise7.cpp
@@ -0,0 +1,97 @@
+#include "Exercise7.h"
+#include <cstring>
+
+void UserError::free() {
+	delete[] className;
+	delete[] propertyName;
+}
+
+void UserError::copyFrom(const UserError& other) {
+	this->className = new char[strlen(other.className) + 1];
+	strcpy(this->className, other.className);
+	this->propertyName = new char[strlen(other.propertyName) + 1];
+	strcpy(this->propertyName, other.propertyName);
+}
+
+UserError::UserError() {
+	className = propertyName = nullptr;
+	createdCount++;
+}
+
+UserError::~UserError() {
+	free();
+}
+
+UserError::UserError(const UserError& other) {
+	copyFrom(other);
+	createdCount++;
+}
+
+UserError& UserError::operator=(const UserError& other) {
+	if (this != &other) {
+		free();
+		copyFrom(other);
+	}
+	return *this;
+}
+
+UserError::UserError(UserError&& other) {
+	this->className = other.className;
+	other.className = nullptr;
+	this->propertyName = other.propertyName;
+	other.propertyName = nullptr;
+}
+
+UserError& UserError::operator=(UserError&& other) {
+	if (this != &other) {
+		free();
+
+		this->className = other.className;
+		other.className = nullptr;
+		this->propertyName = other.propertyName;
+		other.propertyName = nullptr;
+	}
+	return *this;
+}
+
+UserError::UserError(const char* className, const char* propertyName) {
+	this->className = new char[strlen(className) + 1];
+	strcpy(this->className, className);
+	this->propertyName = new char[strlen(propertyName) + 1];
+	strcpy(this->propertyName, propertyName);
+	createdCount++;
+}
+
+std::ostream& operator<<(std::ostream& ostr, const UserError& right) {
+	return ostr << "Invalid user info in class " << right.className << " at " << right.propertyName << "!" << std::endl;
+}
+
+int UserError::GetCreatedCount() {
+	return createdCount;
+}
+
+NumberInput::NumberInput(int min, int max) {
+	std::cout << "Enter number [" << min << ", " << max << "]: ";
+	std::cin >> value;
+	if (value < min || max < value) {
+		throw UserError("NumberInput", "constructor");
+	}
+}
+
+int NumberInput::GetValue() {
+	return value;
+}
+
+int main() {
+	while(true) {
+		try {
+			NumberInput a(5, 10);
+			std::cout << a.GetValue() * 2 << std::endl;
+			break;
+		}
+		catch (const UserError& error) {
+			std::cout << error;
+		}
+	}
+	std::cout << UserError::GetCreatedCount() << std::endl;
+}