Yuki Okushi f26f201d42 Rollup merge of #75085 - lzutao:ip_union, r=cuviper ...

Transmute big endian `s6_addr` and `[u16; 8]`

The old code already made the assumption to reinterpret
`Ipv6Addr` as `[u16; 8]`.

Glibc, Linux, FreeBSD, Win32 all makes this assumption.
The main motivation of using union it to better optimize code.
Godbolt: https://rust.godbolt.org/z/b4bGvo
Const is introducing unsafe when transmuting.

ref:
* https://docs.microsoft.com/en-us/windows/win32/api/in6addr/ns-in6addr-in6_addr
* https://github.com/freebsd/freebsd/blob/1d6e4247415d264485ee94b59fdbc12e0c566fd0/contrib/ntp/lib/isc/include/isc/ipv6.h#L63
* https://github.com/zephyrproject-rtos/zephyr/blob/8b531aa996bba254c03129658490af59597acd78/include/net/net_ip.h#L137
* https://sourceware.org/git/?p=glibc.git;a=blob;f=inet/netinet/in.h;h=f6355c7efe5192b88337b136ef687fe9a5ed648c;hb=HEAD#l216

2020-08-11 16:23:45 +09:00

..

benches

mv std libs to library/

2020-07-27 19:51:13 -05:00

src

Rollup merge of #75085 - lzutao:ip_union, r=cuviper

2020-08-11 16:23:45 +09:00

tests

mv std libs to library/

2020-07-27 19:51:13 -05:00

build.rs

std: Switch from libbacktrace to gimli

2020-07-28 16:34:01 -07:00

Cargo.toml

Update hashbrown to 0.8.1

2020-08-07 07:03:12 +01:00