bors c0f86f5927 Auto merge of #41602 - hsivonen:explainnonnull, r=steveklabnik
Explain why zero-length slices require a non-null pointer

In reference to [a thread on Discourse](https://users.rust-lang.org/t/why-does-std-slice-from-raw-parts-require-a-non-null-pointer-for-zero-length-slices/10534), explain why `from_raw_parts` requires a non-null pointer for zero-length slices.

r? @steveklabnik
2017-04-30 07:58:10 +00:00
..
2017-04-29 12:11:14 -07:00
2017-04-03 20:49:39 +02:00
2017-04-18 08:29:05 +10:00
2017-04-29 12:11:14 -07:00
2017-04-18 23:33:38 +01:00
2017-04-29 12:11:14 -07:00
2017-04-02 06:10:34 +05:30
2017-04-29 12:11:14 -07:00
2017-03-20 10:10:16 -04:00
2017-03-28 11:38:55 -06:00