Implement Duration::as_millis_{f64,f32}
#122479
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| #[rustc_const_unstable(feature = "duration_consts_float", issue = "72440")] | ||
| pub const fn as_millis_f64(&self) -> f64 { | ||
| (self.secs as f64) * (MILLIS_PER_SEC as f64) | ||
| + (self.nanos.0 as f64) / (NANOS_PER_MILLI as f64) |
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I was pondering whether this should be
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| + (self.nanos.0 as f64) / (NANOS_PER_MILLI as f64) | |
| + (self.nanos.0 as f64) * (1.0 / (NANOS_PER_MILLI as f64)) |
because floating-point division is slow, but probably not because as_secs_f32 also does it this way.
Let's leave it like this for the PR; I'll add a note to the tracking issue for libs-api to consider some other time.
|
Looks good for nightly to me! @bors r+ rollup |
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…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#117118 ([AIX] Remove AixLinker's debuginfo() implementation) - rust-lang#121650 (change std::process to drop supplementary groups based on CAP_SETGID) - rust-lang#121764 (Make incremental sessions identity no longer depend on the crate names provided by source code) - rust-lang#122212 (Copy byval argument to alloca if alignment is insufficient) - rust-lang#122322 (coverage: Initial support for branch coverage instrumentation) - rust-lang#122373 (Fix the conflict problem between the diagnostics fixes of lint `unnecessary_qualification` and `unused_imports`) - rust-lang#122479 (Implement `Duration::as_millis_{f64,f32}`) - rust-lang#122487 (Rename `StmtKind::Local` variant into `StmtKind::Let`) - rust-lang#122498 (Update version of cc crate) - rust-lang#122503 (Make `SubdiagMessageOp` well-formed) r? `@ghost` `@rustbot` modify labels: rollup
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…iaskrgr Rollup of 10 pull requests Successful merges: - rust-lang#117118 ([AIX] Remove AixLinker's debuginfo() implementation) - rust-lang#121650 (change std::process to drop supplementary groups based on CAP_SETGID) - rust-lang#121764 (Make incremental sessions identity no longer depend on the crate names provided by source code) - rust-lang#122212 (Copy byval argument to alloca if alignment is insufficient) - rust-lang#122322 (coverage: Initial support for branch coverage instrumentation) - rust-lang#122373 (Fix the conflict problem between the diagnostics fixes of lint `unnecessary_qualification` and `unused_imports`) - rust-lang#122479 (Implement `Duration::as_millis_{f64,f32}`) - rust-lang#122487 (Rename `StmtKind::Local` variant into `StmtKind::Let`) - rust-lang#122498 (Update version of cc crate) - rust-lang#122503 (Make `SubdiagMessageOp` well-formed) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#122479 - GrigorenkoPV:duration_millis_float, r=scottmcm Implement `Duration::as_millis_{f64,f32}` Implementation of rust-lang#122451. Linked const-unstability to rust-lang#72440, so the post there should probably be updated to mentions the 2 new methods when/if this PR is merged.
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Implementation of #122451.
Linked const-unstability to #72440, so the post there should probably be updated to mentions the 2 new methods when/if this PR is merged.