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4 Commits

Author SHA1 Message Date
Arthur O'Dwyer
a70fe03961 [libc++] [ranges] SFINAE away ranges::cbegin(const T&&) for non-borrowed T. 
Fixes #52952.

Differential Revision: https://reviews.llvm.org/D116991
 2022-01-12 13:25:41 -05:00
Arthur O'Dwyer
8507383631 [libc++] [ranges] ADL-proof the [range.access] CPOs. 
For example, `std::ranges::range<Holder<Incomplete>*>` should be
well-formed false, not a hard error at compile time.

Differential Revision: https://reviews.llvm.org/D116239
 2022-01-04 17:15:42 -05:00
Arthur O'Dwyer
502e5df0e0 [libc++] Implement ranges::{cbegin,cend} per the spec. 
The big change here is that they now work as intended for rvalues,
e.g. `ranges::cbegin(std::string_view("hello"))`.
Also, add tests verifying their return types.

Differential Revision: https://reviews.llvm.org/D116199
 2022-01-04 16:18:41 -05:00
Arthur O'Dwyer
6842f52a0b [libc++] [test] Flatten the directory structure a bit. NFC. 
Differential Revision: https://reviews.llvm.org/D116198
 2021-12-23 14:56:23 -05:00