8 files changed, 34 insertions, 11 deletions
diff --git a/backend/ArmorObject.h b/backend/ArmorObject.h
index c8223bc..e9c02d2 100644
--- a/backend/ArmorObject.h
+++ b/backend/ArmorObject.h
@@ -4,7 +4,7 @@
 
 class ArmorObject : public Object {
 private:
-	int protection;
+	int protection = 0;
 
 };
 
diff --git a/backend/Enemy.h b/backend/Enemy.h
index 036c5df..dd33090 100644
--- a/backend/Enemy.h
+++ b/backend/Enemy.h
@@ -1,7 +1,5 @@
 #pragma once
 
 class Enemy {
-private:
-	
 };
 
diff --git a/backend/GoldObject.h b/backend/GoldObject.h
index 0f64ce2..f37b7d9 100644
--- a/backend/GoldObject.h
+++ b/backend/GoldObject.h
@@ -4,5 +4,5 @@
 
 class GoldObject : public Object {
 private:
-	int count;
+	int count = 0;
 };
diff --git a/backend/List.hpp b/backend/List.hpp
index df44f7a..d6c7738 100644
--- a/backend/List.hpp
+++ b/backend/List.hpp
@@ -1,7 +1,6 @@
 #pragma once
 
-#include <cstdlib>
-#include <cstdio>
+#include <stdlib.h>
 
 template <typename T>
 struct ListLink {
diff --git a/backend/Location.h b/backend/Location.h
index 94c3eac..1b23c78 100644
--- a/backend/Location.h
+++ b/backend/Location.h
@@ -2,8 +2,8 @@
 
 class Location {
 protected:
-	Location();
-	virtual ~Location();
+	Location() = default;
+	virtual ~Location() = default;
 	friend class LocationFactory;
 
 };
diff --git a/backend/Object.cpp b/backend/Object.cpp
new file mode 100644
index 0000000..300e6ac
--- /dev/null
+++ b/backend/Object.cpp
@@ -0,0 +1,15 @@
+#include <stdlib.h>
+
+#include "Object.h"
+
+Object::~Object() {
+	if (this->name != nullptr) {
+		free(const_cast<char *>(this->name));
+		this->name = nullptr;
+	}
+	if (this->description != nullptr) {
+		free(const_cast<char *>(this->description));
+		this->description = nullptr;
+	}
+}
+
diff --git a/backend/Object.h b/backend/Object.h
index 8127f08..789de25 100644
--- a/backend/Object.h
+++ b/backend/Object.h
@@ -2,11 +2,11 @@
 
 class Object {
 private:
-	const char * name;
-	const char * description;
+	const char * name = nullptr;
+	const char * description = nullptr;
 
 protected:
-	Object();
+	Object() = default;
 	virtual ~Object();
 	friend class ObjectFactory;
 
diff --git a/backend/check b/backend/check
new file mode 100755
index 0000000..445dbbe
--- /dev/null
+++ b/backend/check
@@ -0,0 +1,11 @@
+#!/bin/sh
+for file in *.cpp *.hpp *.h ; do
+	# non C-style headers
+	grep -Hn '#include\s*<[^.]\+>' "$file"
+	# forbidden STL containers
+	grep -Hn '\<make_unique\>' "$file"
+	grep -Hn '\<vector\>' "$file"
+	grep -Hn '\<pair\>' "$file"
+done
+exit 0
+