add casts

add inline
add template

CPlusPlus/Pointers/main.cpp

@@ -26,6 +26,8 @@ int main()
 		pNumber = nullptr;
 	}
 
+	safeDelete(pNumber);
+
 	// pointer as references outside local scope
 	int number = 10;
 	changeInteger(number);
@@ -74,5 +76,33 @@ int main()
 		pNumber = nullptr;
 	}
 
+	// const example
+	const int constNumber = 10;
+	//constNumber = 20; // a const value can not be changed
+	
+	const int* constNumberPointer = new int(10);
+	//*constNumberPointer = 20; // this is a const value
+	constNumberPointer = new int(20); // but not a const pointer
+
+	int const* numberConstPointer = new int(10);
+	//*numberConstPointer = 20; // this is a const value
+	numberConstPointer = new int(20); // but not a const pointer
+
+	int* const numberPointerConst = new int(10);
+	*numberPointerConst = 20; // the value is not const
+	//numberPointerConst = new int(20); // but the pointer is const
+
+	const int* const constNumberPointerConst = new int(10);
+	//*constNumberPointerConst = 20; // this is a const value
+	//constNumberPointerConst = new int(20); // and the pointer as well
+
+	int const* const numberConstPointerConst = new int(10);
+	//*numberConstPointerConst = 20; // this is a const value
+	//numberConstPointerConst = new int(20); // and the pointer as well
+
+	const int const* const constNumberConstPointerConst = new int(10);
+	//*constNumberConstPointerConst = 20; // this is a const value
+	//constNumberConstPointerConst = new int(20); // and the pointer as well
+
 	return 0;
 }