Use the unsigned integer types for bitwise intrinsics. #13506
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| pub fn bswap16(x: i16) -> i16; | ||
| pub fn bswap32(x: i32) -> i32; | ||
| pub fn bswap64(x: i64) -> i64; | ||
| // remove this after a snap, and merge the extern block above |
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nit: Could you add NOTE here to make this pop-up in make tidy ?
I use to grep for stage0 when doing a snapshot but it's still useful to use NOTE and make tidy
|
r=me, but it appears that there are failing tests on travis |
Exposing ctpop, ctlz, cttz and bswap as taking signed i8/i16/... is just exposing the internal LLVM names pointlessly (LLVM doesn't have "signed integers" or "unsigned integers", it just has sized integer types with (un)signed *operations*). These operations are semantically working with raw bytes, which the unsigned types model better.
alexcrichton
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Closes rust-lang#13546 (workcache: Don't assume gcc exists on all platforms) Closes rust-lang#13545 (std: Remove pub use globs) Closes rust-lang#13530 (test: Un-ignore smallest-hello-world.rs) Closes rust-lang#13529 (std: Un-ignore some float tests on windows) Closes rust-lang#13528 (green: Add a helper macro for booting libgreen) Closes rust-lang#13526 (Remove RUST_LOG="::help" from the docs) Closes rust-lang#13524 (dist: Make Windows installer uninstall first. Closes rust-lang#9563) Closes rust-lang#13521 (Change AUTHORS section in the man pages) Closes rust-lang#13519 (Update GitHub's Rust projects page.) Closes rust-lang#13518 (mk: Change windows to install from stage2) Closes rust-lang#13516 (liburl doc: insert missing hyphen) Closes rust-lang#13514 (rustdoc: Better sorting criteria for searching.) Closes rust-lang#13512 (native: Fix a race in select()) Closes rust-lang#13506 (Use the unsigned integer types for bitwise intrinsics.) Closes rust-lang#13502 (Add a default impl for Set::is_superset)
flip1995
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Oct 18, 2024
…rednet unused_result_ok: added in Clippy 1.82.0, not 1.70.0 changelog: none Fix rust-lang#13497
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Use the unsigned integer types for bitwise intrinsics.
Exposing ctpop, ctlz, cttz and bswap as taking signed i8/i16/... is just
exposing the internal LLVM names pointlessly (LLVM doesn't have "signed
integers" or "unsigned integers", it just has sized integer types
with (un)signed operations).
These operations are semantically working with raw bytes, which the
unsigned types model better.