vstd: copy_from_slice and extend_from_slice specs #1153
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| #[verifier::external_fn_specification] | ||
| pub fn ex_vec_extend_from_slice<T: Clone, A: Allocator>(vec: &mut Vec<T, A>, slice: &[T]) | ||
| ensures | ||
| vec@ == old(vec)@ + slice@, |
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The new elements in vec are generated by calling clone, so I think this needs to be based on the ensures from clone, like ex_vec_clone is.
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This PR adds specifications for the slice method
copy_from_sliceand the vec methodextend_from_slice.