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Yuki Okushi ec2fd8a35f
Rollup merge of #93445 - yaahc:exitcode-constructor, r=dtolnay 
Add From<u8> for ExitCode

This should cover a mostly cross-platform subset of supported exit codes.

We decided to stick with `u8` initially since its the common subset between all platforms that we support (excluding wasm which I think only works with `true` or `false`). Posix is supposed to take i32s, but in practice many unix platforms mask out all but the low 8 bits or in some cases the 8-15th bits. Windows takes a u32 instead of an i32. Bourne-compatible shells also report signals as exitcode 128 + `signal_no`, so there's some ambiguity there when returning exit codes > 127, but it is possible to disambiguate them on the other side so we decided against restricting the possible codes further than to `u8`.

## Related

- Detailed analysis of exit code support on various platforms: https://internals.rust-lang.org/t/mini-pre-rfc-redesigning-process-exitstatus/5426
- https://github.com/rust-lang/rust/issues/48711
- https://github.com/rust-lang/rust/issues/43301
- https://rust-lang.zulipchat.com/#narrow/stream/219381-t-libs/topic/Termination.2FExit.20Status.20Stabilization
2022-02-09 14:12:17 +09:00
..
alloc Add {floor,ceil}_char_boundary methods to str 2022-02-07 13:34:08 -05:00
backtrace@b02ed04a7e Updated backtrace submodule 2021-11-02 12:31:34 +01:00
core Auto merge of #93572 - scottmcm:generic-iter-process, r=yaahc 2022-02-08 13:41:40 +00:00
panic_abort Switch all libraries to the 2021 edition 2021-12-23 19:03:47 +08:00
panic_unwind adapt L4Bender implementation 2022-01-21 16:50:33 +01:00
portable-simd Sync rust-lang/portable-simd@03f6fbb21e 2022-01-27 11:23:40 -08:00
proc_macro Auto merge of #92598 - Badel2:panic-update-hook, r=yaahc 2022-01-16 02:18:42 +00:00
profiler_builtins Switch all libraries to the 2021 edition 2021-12-23 19:03:47 +08:00
rtstartup Bump bootstrap compiler to 1.50 beta 2020-12-30 09:27:19 -05:00
rustc-std-workspace-alloc Switch all libraries to the 2021 edition 2021-12-23 19:03:47 +08:00
rustc-std-workspace-core Switch all libraries to the 2021 edition 2021-12-23 19:03:47 +08:00
rustc-std-workspace-std Switch all libraries to the 2021 edition 2021-12-23 19:03:47 +08:00
std Rollup merge of #93445 - yaahc:exitcode-constructor, r=dtolnay 2022-02-09 14:12:17 +09:00
stdarch@eaee02ffdf Update stdarch submodule 2022-01-28 12:46:22 +00:00
test Rollup merge of #93416 - name1e5s:chore/remove_allow_fail, r=m-ou-se 2022-02-07 14:08:34 +00:00
unwind Switch all libraries to the 2021 edition 2021-12-23 19:03:47 +08:00