Smart Pointers interview questions

1. A.a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
2. B.the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
3. C.a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads
4. D.a smart pointer that stores its single owned value on the heap, used for recursive types or large data

Answer + AI explanation with Pro

1. A.Rc
2. B.Box
3. C.RefCell
4. D.Arc

Answer + AI explanation with Pro

1. A.Box — the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
2. B.Box — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
3. C.Box — a smart pointer that stores its single owned value on the heap, used for recursive types or large data
4. D.Box — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur

Answer + AI explanation with Pro

1. A.the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
2. B.a smart pointer that stores its single owned value on the heap, used for recursive types or large data
3. C.a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
4. D.a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads

Answer + AI explanation with Pro

1. A.Box
2. B.Arc
3. C.RefCell
4. D.Rc

Answer + AI explanation with Pro

1. A.Rc — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
2. B.Rc — a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads
3. C.Rc — a smart pointer that stores its single owned value on the heap, used for recursive types or large data
4. D.Rc — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur

Answer + AI explanation with Pro

1. A.a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads
2. B.the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
3. C.a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
4. D.a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops

Answer + AI explanation with Pro

1. A.Rc
2. B.Arc
3. C.RefCell
4. D.Box

Answer + AI explanation with Pro

1. A.Arc — a thread-safe reference-counted pointer that uses atomic operations on its counter so ownership can be shared across threads
2. B.Arc — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
3. C.Arc — a smart pointer that stores its single owned value on the heap, used for recursive types or large data
4. D.Arc — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops

Answer + AI explanation with Pro

1. A.the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
2. B.a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
3. C.a smart pointer that stores its single owned value on the heap, used for recursive types or large data
4. D.a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur

Answer + AI explanation with Pro

1. A.Arc
2. B.RefCell
3. C.Interior mutability
4. D.Rc

Answer + AI explanation with Pro

1. A.RefCell — the pattern of mutating data through a shared reference by deferring the aliasing check to runtime
2. B.RefCell — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
3. C.RefCell — a smart pointer that stores its single owned value on the heap, used for recursive types or large data
4. D.RefCell — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops

Answer + AI explanation with Pro

1. A.a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
2. B.a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
3. C.a smart pointer that stores its single owned value on the heap, used for recursive types or large data
4. D.the pattern of mutating data through a shared reference by deferring the aliasing check to runtime

Answer + AI explanation with Pro

1. A.Arc
2. B.Rc
3. C.Interior mutability
4. D.RefCell

Answer + AI explanation with Pro

1. A.Interior mutability — a container enforcing the borrow rules at runtime rather than compile time, panicking if conflicting borrows occur
2. B.Interior mutability — a smart pointer that stores its single owned value on the heap, used for recursive types or large data
3. C.Interior mutability — a single-threaded reference-counted pointer enabling multiple owners of the same heap value, freed when the last owner drops
4. D.Interior mutability — the pattern of mutating data through a shared reference by deferring the aliasing check to runtime

Answer + AI explanation with Pro