rust/src/libcore, branch 1.30.1

Revert "Auto merge of #53793 - toidiu:ak-stabalize, r=nikomatsakis"

2018-10-06T21:14:29+00:00

This reverts commit 6810f5286b6b91daab06fc3dccb27d8c46f14349, reversing changes made to 8586ec6980462c99a8926646201b2444d8938d29.

Auto merge of #53910 - IsaacWoods:unify_cvoid, r=SimonSapin

2018-09-16T23:13:30+00:00

Move std::os::raw::c_void into libcore and re-export in libstd Implements the first part of [RFC 2521](https://github.com/rust-lang/rfcs/pull/2521). cc #53856

Auto merge of #53754 - RalfJung:slice_align_to, r=alexcrichton

2018-09-16T07:22:24+00:00

stabilize slice_align_to This is very hard to implement correctly, and leads to [serious bugs](https://github.com/llogiq/bytecount/pull/42) when done incorrectly. Moreover, this is needed to be able to run code that opportunistically exploits alignment on miri. So code using `align_to`/`align_to_mut` gets the benefit of a well-tested implementation *and* of being able to run in miri to test for (some kinds of) UB. This PR also clarifies the guarantee wrt. the middle part being as long as possible. Should the docs say under which circumstances the middle part could be shorter? Currently, that can only happen when running in miri.

Move std::os::raw::c_void into libcore and re-export in libstd

2018-09-14T15:19:59+00:00

Auto merge of #54032 - oli-obk:layout_scalar_ranges, r=eddyb

2018-09-14T09:47:21+00:00

Add forever unstable attribute to allow specifying arbitrary scalar ranges r? @eddyb for the first commit and @nikomatsakis for the second one

Rollup merge of #53218 - weiznich:feature/option_ref_into, r=KodrAus

2018-09-14T06:50:09+00:00

Add a implementation of `From` for converting `&'a Option` into `Option<&'a T>` I'm not sure if any annotations regarding the stabilization are needed or in general what's the correct process of adding such an impl. cc @sgrif (We have talked about this)

Auto merge of #53793 - toidiu:ak-stabalize, r=nikomatsakis

2018-09-12T11:27:48+00:00

stabilize outlives requirements https://github.com/rust-lang/rust/issues/44493 r? @nikomatsakis

Rollup merge of #53777 - ivanbakel:result_map_or_else, r=alexcrichton

2018-09-12T04:17:25+00:00

Implemented map_or_else for Result Fulfills #53268 The example is ripped from `Option::map_or_else`, with the types corrected.

stabalize infer outlives requirements (RFC 2093).

2018-09-11T15:40:04+00:00

Co-authored-by: nikomatsakis

Address attribute naming and use `Bound` enum

2018-09-11T09:25:51+00:00