Câu hỏi phỏng vấn Rust
Câu hỏi

Is String type in Rust Copy or Clone ?

Câu trả lời

In Rust, the String type implements the Clone trait but not the Copy trait.

The Copy trait is used for types that can be duplicated by simply copying bits, which is a very inexpensive operation. However, String is a heap-allocated type, meaning it points to a buffer stored on the heap. If String were to implement Copy, it would only duplicate the pointer, not the actual data, leading to potential issues like double-free errors when the original and copied String are both dropped. Therefore, String does not implement Copy[1][2][3][4].

On the other hand, the Clone trait allows for a de...

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