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Auto merge of #130157 - eduardosm:stabilize-const_float_classify, r=RalfJung

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Stabilize `const_float_classify`

Tracking issue: https://github.com/rust-lang/rust/issues/72505

Also reverts https://github.com/rust-lang/rust/pull/114486

Closes https://github.com/rust-lang/rust/issues/72505

Stabilized const API:

```rust
impl f32 {
    pub const fn is_nan(self) -> bool;
    pub const fn is_infinite(self) -> bool;
    pub const fn is_finite(self) -> bool;
    pub const fn is_subnormal(self) -> bool;
    pub const fn is_normal(self) -> bool;
    pub const fn classify(self) -> FpCategory;
    pub const fn is_sign_positive(self) -> bool;
    pub const fn is_sign_negative(self) -> bool;
}

impl f64 {
    pub const fn is_nan(self) -> bool;
    pub const fn is_infinite(self) -> bool;
    pub const fn is_finite(self) -> bool;
    pub const fn is_subnormal(self) -> bool;
    pub const fn is_normal(self) -> bool;
    pub const fn classify(self) -> FpCategory;
    pub const fn is_sign_positive(self) -> bool;
    pub const fn is_sign_negative(self) -> bool;
}
```

cc `@rust-lang/wg-const-eval` `@rust-lang/libs-api`
This commit is contained in:
bors 2024-10-04 18:03:16 +00:00
commit 14f303bc14
10 changed files with 43 additions and 47 deletions
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2
compiler/rustc_lint/src/lints.rs
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@ -1703,7 +1703,7 @@ pub(crate) enum InvalidNanComparisons {
#[diag(lint_invalid_nan_comparisons_eq_ne)]
EqNe {
#[subdiagnostic]
suggestion: Option<InvalidNanComparisonsSuggestion>,
suggestion: InvalidNanComparisonsSuggestion,
},
#[diag(lint_invalid_nan_comparisons_lt_le_gt_ge)]
LtLeGtGe,