rust/library/std
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
..
benches mv std libs to library/ 2020-07-27 19:51:13 -05:00
primitive_docs Add primitive documentation to libcore 2021-09-12 02:23:08 +00:00
src Rollup merge of #93445 - yaahc:exitcode-constructor, r=dtolnay 2022-02-09 14:12:17 +09:00
tests Move unstable is_{arch}_feature_detected! macros to std::arch 2022-01-28 09:51:46 +00:00
build.rs std: Get the standard library compiling for wasm64 2021-11-10 08:35:42 -08:00
Cargo.toml Update compiler_builtins to fix duplicate symbols in armv7-linux-androideabi rlib 2022-01-29 08:28:52 -08:00