Is String type in Rust Copy or Clone ?
Is String type in Rust Copy or Clone ?
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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