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Rust Programming Language MCQs

What is a safe operation on a std::cell:UnsafeCell?

A &mut T reference is allowed. However it may not cpexists with any other references. and may be created only in single-threaded code.

UnsafeCell provides thread-safety. Therefore, creating &T references from multiple threads is safe.

The only safe operation is the .get() method, which returns only a raw pointer.

Non. UnsafeCell only allows code that would otherwise need unsafe blocks to be written in safe code.

Answer

Correct Answer: The only safe operation is the .get() method, which returns only a raw pointer.

Explanation:

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