Rust Programming 2023 - A Comprehensive Course for Beginners - Code Along and Customize Your Own Smart Pointer in Rust

What is the primary purpose of using traits like Deref and Drop in custom smart pointers?

• To increase the memory allocation speed

• To simplify the syntax of pointer operations

• To allow custom behavior for dereferencing and cleanup

• To enhance the performance of the pointer

Which keyword is used to define a new structure in Rust?

• struct

• class

• define

• object

What is the significance of using a generic type 'T' in the custom smart pointer?

• It allows the pointer to store only integer values

• It restricts the pointer to a single data type

• It improves the execution speed of the pointer

• It enables the pointer to handle multiple data types

In the context of implementing the Deref trait, what does the 'target' type represent?

• The memory address of the pointer

• The associated type for dereferencing

• The size of the data being pointed to

• The default value of the pointer

What is the purpose of the 'heap_allocation' function in the custom smart pointer?

• To allocate memory on the stack

• To initialize the pointer with a default value

• To allocate memory on the heap

• To deallocate memory from the heap

What common mistake was highlighted during the testing phase of the custom smart pointer?

• Using incorrect data types

• Incorrect use of snake_case for function names

• Forgetting to import necessary libraries

• Misplacing the struct keyword

What was the final output when testing the custom smart pointer with the color 'green'?

• The color was not moved to the heap

• The program crashed due to a runtime error

• The color was incorrectly displayed as 'blue'

• The color 'green' was successfully moved to the heap