Document that slice refers to any pointer type to a sequence #75028
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I was recently confused about the way slices are represented in memory. The necessary information was not available in the std-docs directly, but was a mix of different material from the reference and book.
This PR should clear up the definition of slices a bit more in the documentation. Especially the fact that the term slice refers to the pointer/reference type, e.g.
&[T]
, and not[T]
.It also documents that slice pointers are twice the size of pointers to
Sized
types, as this concept may be unfamiliar to users coming from other languages that do not have the concept of "fat pointers" (especially C/C++).I've documented why this was important to me and my findings in this blog post.
r? @lcnr