2f3f001423
Make some float methods unstable `const fn` Some float methods are now `const fn` under the `const_float_methods` feature gate. I also made some unstable methods `const fn`, keeping their constness under their respective feature gate. In order to support `min`, `max`, `abs` and `copysign`, the implementation of some intrinsics had to be moved from Miri to rustc_const_eval (cc `@RalfJung).` Tracking issue: https://github.com/rust-lang/rust/issues/130843 ```rust impl <float> { // #[feature(const_float_methods)] pub const fn recip(self) -> Self; pub const fn to_degrees(self) -> Self; pub const fn to_radians(self) -> Self; pub const fn max(self, other: Self) -> Self; pub const fn min(self, other: Self) -> Self; pub const fn clamp(self, min: Self, max: Self) -> Self; pub const fn abs(self) -> Self; pub const fn signum(self) -> Self; pub const fn copysign(self, sign: Self) -> Self; // #[feature(float_minimum_maximum)] pub const fn maximum(self, other: Self) -> Self; pub const fn minimum(self, other: Self) -> Self; // Only f16/f128 (f32/f64 already const) pub const fn is_sign_positive(self) -> bool; pub const fn is_sign_negative(self) -> bool; pub const fn next_up(self) -> Self; pub const fn next_down(self) -> Self; } ``` r? libs-api try-job: dist-s390x-linux
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