Revert "Auto merge of #296 - vks:no_std, r=cuviper"
This reverts commit8b5d4ac24e, reversing changes made toef752e4687.
This commit is contained in:
Josh Stone
parent
681bbf8659
commit
fe34d17aaf
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@ -10,7 +10,3 @@ name = "num-traits"
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version = "0.1.38"
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[dependencies]
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[features]
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default = ["std"]
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std = []
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@ -1,7 +1,7 @@
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use core::{usize, u8, u16, u32, u64};
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use core::{isize, i8, i16, i32, i64};
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use core::{f32, f64};
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use core::num::Wrapping;
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use std::{usize, u8, u16, u32, u64};
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use std::{isize, i8, i16, i32, i64};
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use std::{f32, f64};
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use std::num::Wrapping;
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/// Numbers which have upper and lower bounds
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pub trait Bounded {
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@ -1,9 +1,8 @@
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use core::mem::size_of;
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use core::num::Wrapping;
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use std::mem::size_of;
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use std::num::Wrapping;
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use identities::Zero;
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use bounds::Bounded;
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use float::Float;
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/// A generic trait for converting a value to a number.
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pub trait ToPrimitive {
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@ -227,8 +226,8 @@ macro_rules! impl_to_primitive_float_to_float {
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// Make sure the value is in range for the cast.
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// NaN and +-inf are cast as they are.
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let n = $slf as f64;
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let max_value: $DstT = ::core::$DstT::MAX;
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if !Float::is_finite(n) || (-max_value as f64 <= n && n <= max_value as f64) {
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let max_value: $DstT = ::std::$DstT::MAX;
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if !n.is_finite() || (-max_value as f64 <= n && n <= max_value as f64) {
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Some($slf as $DstT)
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} else {
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None
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@ -455,8 +454,8 @@ impl<T: NumCast> NumCast for Wrapping<T> {
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#[test]
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fn to_primitive_float() {
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use core::f32;
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use core::f64;
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use std::f32;
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use std::f64;
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let f32_toolarge = 1e39f64;
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assert_eq!(f32_toolarge.to_f32(), None);
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@ -1,20 +1,15 @@
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use core::mem;
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use core::ops::Neg;
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use core::num::FpCategory;
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use std::mem;
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use std::ops::Neg;
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use std::num::FpCategory;
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// Used for default implementation of `epsilon`
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use core::f32;
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use std::f32;
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use {ToPrimitive, Num, NumCast};
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use {Num, NumCast};
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// FIXME: these doctests aren't actually helpful, because they're using and
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// testing the inherent methods directly, not going through `Float`.
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/// Floating point operations.
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///
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/// Please note that some methods are disabled for `no_std`. If you implement it
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/// only for `no_std`, the build will fail if anyone else in the dependency
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/// graph enables `num-traits/std`.
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pub trait Float
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: Num
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+ Copy
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@ -32,7 +27,6 @@ pub trait Float
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/// assert!(nan.is_nan());
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/// ```
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fn nan() -> Self;
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/// Returns the infinite value.
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///
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/// ```
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@ -46,7 +40,6 @@ pub trait Float
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/// assert!(infinity > f32::MAX);
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/// ```
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fn infinity() -> Self;
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/// Returns the negative infinite value.
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///
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/// ```
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@ -60,7 +53,6 @@ pub trait Float
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/// assert!(neg_infinity < f32::MIN);
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/// ```
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fn neg_infinity() -> Self;
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/// Returns `-0.0`.
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///
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/// ```
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@ -74,10 +66,7 @@ pub trait Float
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/// assert_eq!(7.0f32/inf, zero);
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/// assert_eq!(zero * 10.0, zero);
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/// ```
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#[inline]
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fn neg_zero() -> Self {
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-Self::zero()
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}
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fn neg_zero() -> Self;
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/// Returns the smallest finite value that this type can represent.
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///
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@ -145,10 +134,7 @@ pub trait Float
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/// assert!(nan.is_nan());
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/// assert!(!f.is_nan());
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/// ```
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#[inline]
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fn is_nan(self) -> bool {
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self != self
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}
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fn is_nan(self) -> bool;
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/// Returns `true` if this value is positive infinity or negative infinity and
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/// false otherwise.
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@ -168,10 +154,7 @@ pub trait Float
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/// assert!(inf.is_infinite());
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/// assert!(neg_inf.is_infinite());
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/// ```
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#[inline]
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fn is_infinite(self) -> bool {
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self == Self::infinity() || self == Self::neg_infinity()
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}
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fn is_infinite(self) -> bool;
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/// Returns `true` if this number is neither infinite nor `NaN`.
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///
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@ -190,10 +173,7 @@ pub trait Float
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/// assert!(!inf.is_finite());
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/// assert!(!neg_inf.is_finite());
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/// ```
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#[inline]
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fn is_finite(self) -> bool {
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!(self.is_nan() || self.is_infinite())
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}
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fn is_finite(self) -> bool;
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/// Returns `true` if the number is neither zero, infinite,
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/// [subnormal][subnormal], or `NaN`.
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@ -217,10 +197,7 @@ pub trait Float
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/// assert!(!lower_than_min.is_normal());
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/// ```
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/// [subnormal]: http://en.wikipedia.org/wiki/Denormal_number
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#[inline]
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fn is_normal(self) -> bool {
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self.classify() == FpCategory::Normal
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}
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fn is_normal(self) -> bool;
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/// Returns the floating point category of the number. If only one property
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/// is going to be tested, it is generally faster to use the specific
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@ -250,7 +227,6 @@ pub trait Float
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/// assert_eq!(f.floor(), 3.0);
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/// assert_eq!(g.floor(), 3.0);
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/// ```
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#[cfg(feature = "std")]
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fn floor(self) -> Self;
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/// Returns the smallest integer greater than or equal to a number.
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@ -264,7 +240,6 @@ pub trait Float
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/// assert_eq!(f.ceil(), 4.0);
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/// assert_eq!(g.ceil(), 4.0);
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/// ```
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#[cfg(feature = "std")]
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fn ceil(self) -> Self;
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/// Returns the nearest integer to a number. Round half-way cases away from
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@ -279,7 +254,6 @@ pub trait Float
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/// assert_eq!(f.round(), 3.0);
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/// assert_eq!(g.round(), -3.0);
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/// ```
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#[cfg(feature = "std")]
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fn round(self) -> Self;
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/// Return the integer part of a number.
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@ -293,7 +267,6 @@ pub trait Float
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/// assert_eq!(f.trunc(), 3.0);
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/// assert_eq!(g.trunc(), -3.0);
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/// ```
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#[cfg(feature = "std")]
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fn trunc(self) -> Self;
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/// Returns the fractional part of a number.
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@ -309,7 +282,6 @@ pub trait Float
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/// assert!(abs_difference_x < 1e-10);
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/// assert!(abs_difference_y < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn fract(self) -> Self;
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/// Computes the absolute value of `self`. Returns `Float::nan()` if the
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@ -330,16 +302,7 @@ pub trait Float
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///
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/// assert!(f64::NAN.abs().is_nan());
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/// ```
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#[inline]
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fn abs(self) -> Self {
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if self.is_sign_positive() {
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return self;
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}
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if self.is_sign_negative() {
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return -self;
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}
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Self::nan()
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}
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fn abs(self) -> Self;
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/// Returns a number that represents the sign of `self`.
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///
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@ -358,16 +321,7 @@ pub trait Float
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///
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/// assert!(f64::NAN.signum().is_nan());
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/// ```
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#[inline]
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fn signum(self) -> Self {
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if self.is_sign_positive() {
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return Self::one();
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}
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if self.is_sign_negative() {
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return -Self::one();
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}
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Self::nan()
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}
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fn signum(self) -> Self;
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/// Returns `true` if `self` is positive, including `+0.0` and
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/// `Float::infinity()`.
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@ -386,10 +340,7 @@ pub trait Float
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/// // Requires both tests to determine if is `NaN`
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/// assert!(!nan.is_sign_positive() && !nan.is_sign_negative());
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/// ```
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#[inline]
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fn is_sign_positive(self) -> bool {
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self > Self::zero() || (Self::one() / self) == Self::infinity()
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}
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fn is_sign_positive(self) -> bool;
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/// Returns `true` if `self` is negative, including `-0.0` and
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/// `Float::neg_infinity()`.
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@ -408,10 +359,7 @@ pub trait Float
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/// // Requires both tests to determine if is `NaN`.
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/// assert!(!nan.is_sign_positive() && !nan.is_sign_negative());
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/// ```
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#[inline]
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fn is_sign_negative(self) -> bool {
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self < Self::zero() || (Self::one() / self) == Self::neg_infinity()
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}
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fn is_sign_negative(self) -> bool;
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/// Fused multiply-add. Computes `(self * a) + b` with only one rounding
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/// error. This produces a more accurate result with better performance than
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@ -429,9 +377,7 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn mul_add(self, a: Self, b: Self) -> Self;
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/// Take the reciprocal (inverse) of a number, `1/x`.
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///
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/// ```
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@ -442,10 +388,7 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[inline]
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fn recip(self) -> Self {
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Self::one() / self
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}
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fn recip(self) -> Self;
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/// Raise a number to an integer power.
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///
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@ -459,15 +402,7 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[inline]
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fn powi(mut self, mut exp: i32) -> Self {
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if exp < 0 {
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self = self.recip();
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exp = -exp;
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}
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// It should always be possible to convert a positive `i32` to a `usize`.
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super::pow(self, exp.to_usize().unwrap())
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}
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fn powi(self, n: i32) -> Self;
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/// Raise a number to a floating point power.
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///
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@ -479,7 +414,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn powf(self, n: Self) -> Self;
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/// Take the square root of a number.
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@ -497,7 +431,6 @@ pub trait Float
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/// assert!(abs_difference < 1e-10);
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/// assert!(negative.sqrt().is_nan());
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/// ```
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#[cfg(feature = "std")]
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fn sqrt(self) -> Self;
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/// Returns `e^(self)`, (the exponential function).
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@ -514,7 +447,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn exp(self) -> Self;
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/// Returns `2^(self)`.
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@ -529,7 +461,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn exp2(self) -> Self;
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/// Returns the natural logarithm of the number.
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@ -546,7 +477,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn ln(self) -> Self;
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/// Returns the logarithm of the number with respect to an arbitrary base.
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@ -566,7 +496,6 @@ pub trait Float
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/// assert!(abs_difference_10 < 1e-10);
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/// assert!(abs_difference_2 < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn log(self, base: Self) -> Self;
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/// Returns the base 2 logarithm of the number.
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@ -581,7 +510,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn log2(self) -> Self;
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/// Returns the base 10 logarithm of the number.
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@ -596,7 +524,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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fn log10(self) -> Self;
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/// Converts radians to degrees.
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@ -610,7 +537,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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#[inline]
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fn to_degrees(self) -> Self {
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let halfpi = Self::zero().acos();
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@ -618,20 +544,6 @@ pub trait Float
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self * ninety / halfpi
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}
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/// Converts radians to degrees.
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///
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/// ```
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/// use std::f64::consts;
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///
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/// let angle = consts::PI;
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///
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/// let abs_difference = (angle.to_degrees() - 180.0).abs();
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(not(feature = "std"))]
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fn to_degrees(self) -> Self;
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/// Converts degrees to radians.
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///
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/// ```
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@ -643,7 +555,6 @@ pub trait Float
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(feature = "std")]
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#[inline]
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fn to_radians(self) -> Self {
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let halfpi = Self::zero().acos();
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@ -651,24 +562,8 @@ pub trait Float
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self * halfpi / ninety
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}
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/// Converts degrees to radians.
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///
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/// ```
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/// use std::f64::consts;
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///
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/// let angle = 180.0_f64;
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///
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/// let abs_difference = (angle.to_radians() - consts::PI).abs();
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///
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/// assert!(abs_difference < 1e-10);
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/// ```
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#[cfg(not(feature = "std"))]
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fn to_radians(self) -> Self;
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/// Returns the maximum of the two numbers.
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///
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/// If one of the arguments is NaN, then the other argument is returned.
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///
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/// ```
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/// use num_traits::Float;
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///
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@ -677,21 +572,10 @@ pub trait Float
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///
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/// assert_eq!(x.max(y), y);
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/// ```
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#[inline]
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fn max(self, other: Self) -> Self {
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if self.is_nan() {
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return other;
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}
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if other.is_nan() {
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return self;
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}
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if self > other { self } else { other }
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}
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fn max(self, other: Self) -> Self;
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/// Returns the minimum of the two numbers.
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///
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/// If one of the arguments is NaN, then the other argument is returned.
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///
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/// ```
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/// use num_traits::Float;
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///
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@ -700,16 +584,7 @@ pub trait Float
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///
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/// assert_eq!(x.min(y), x);
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/// ```
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#[inline]
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fn min(self, other: Self) -> Self {
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if self.is_nan() {
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return other;
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}
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if other.is_nan() {
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return self;
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}
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if self < other { self } else { other }
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}
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fn min(self, other: Self) -> Self;
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/// The positive difference of two numbers.
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///
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@ -728,7 +603,6 @@ pub trait Float
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/// assert!(abs_difference_x < 1e-10);
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/// assert!(abs_difference_y < 1e-10);
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/// ```
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#[cfg(feature = "std")]
|
||||
fn abs_sub(self, other: Self) -> Self;
|
||||
|
||||
/// Take the cubic root of a number.
|
||||
|
|
@ -743,7 +617,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn cbrt(self) -> Self;
|
||||
|
||||
/// Calculate the length of the hypotenuse of a right-angle triangle given
|
||||
|
|
@ -760,7 +633,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn hypot(self, other: Self) -> Self;
|
||||
|
||||
/// Computes the sine of a number (in radians).
|
||||
|
|
@ -775,7 +647,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn sin(self) -> Self;
|
||||
|
||||
/// Computes the cosine of a number (in radians).
|
||||
|
|
@ -790,7 +661,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn cos(self) -> Self;
|
||||
|
||||
/// Computes the tangent of a number (in radians).
|
||||
|
|
@ -804,7 +674,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-14);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn tan(self) -> Self;
|
||||
|
||||
/// Computes the arcsine of a number. Return value is in radians in
|
||||
|
|
@ -822,7 +691,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn asin(self) -> Self;
|
||||
|
||||
/// Computes the arccosine of a number. Return value is in radians in
|
||||
|
|
@ -840,7 +708,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn acos(self) -> Self;
|
||||
|
||||
/// Computes the arctangent of a number. Return value is in radians in the
|
||||
|
|
@ -856,7 +723,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn atan(self) -> Self;
|
||||
|
||||
/// Computes the four quadrant arctangent of `self` (`y`) and `other` (`x`).
|
||||
|
|
@ -886,7 +752,6 @@ pub trait Float
|
|||
/// assert!(abs_difference_1 < 1e-10);
|
||||
/// assert!(abs_difference_2 < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn atan2(self, other: Self) -> Self;
|
||||
|
||||
/// Simultaneously computes the sine and cosine of the number, `x`. Returns
|
||||
|
|
@ -905,7 +770,6 @@ pub trait Float
|
|||
/// assert!(abs_difference_0 < 1e-10);
|
||||
/// assert!(abs_difference_0 < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn sin_cos(self) -> (Self, Self);
|
||||
|
||||
/// Returns `e^(self) - 1` in a way that is accurate even if the
|
||||
|
|
@ -921,7 +785,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn exp_m1(self) -> Self;
|
||||
|
||||
/// Returns `ln(1+n)` (natural logarithm) more accurately than if
|
||||
|
|
@ -938,7 +801,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn ln_1p(self) -> Self;
|
||||
|
||||
/// Hyperbolic sine function.
|
||||
|
|
@ -957,7 +819,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn sinh(self) -> Self;
|
||||
|
||||
/// Hyperbolic cosine function.
|
||||
|
|
@ -976,7 +837,6 @@ pub trait Float
|
|||
/// // Same result
|
||||
/// assert!(abs_difference < 1.0e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn cosh(self) -> Self;
|
||||
|
||||
/// Hyperbolic tangent function.
|
||||
|
|
@ -995,7 +855,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1.0e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn tanh(self) -> Self;
|
||||
|
||||
/// Inverse hyperbolic sine function.
|
||||
|
|
@ -1010,7 +869,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1.0e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn asinh(self) -> Self;
|
||||
|
||||
/// Inverse hyperbolic cosine function.
|
||||
|
|
@ -1025,7 +883,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1.0e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn acosh(self) -> Self;
|
||||
|
||||
/// Inverse hyperbolic tangent function.
|
||||
|
|
@ -1041,7 +898,6 @@ pub trait Float
|
|||
///
|
||||
/// assert!(abs_difference < 1.0e-10);
|
||||
/// ```
|
||||
#[cfg(feature = "std")]
|
||||
fn atanh(self) -> Self;
|
||||
|
||||
|
||||
|
|
@ -1070,21 +926,21 @@ pub trait Float
|
|||
}
|
||||
|
||||
macro_rules! float_impl {
|
||||
($T:ident $decode:ident $classify:ident) => (
|
||||
($T:ident $decode:ident) => (
|
||||
impl Float for $T {
|
||||
#[inline]
|
||||
fn nan() -> Self {
|
||||
::core::$T::NAN
|
||||
::std::$T::NAN
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn infinity() -> Self {
|
||||
::core::$T::INFINITY
|
||||
::std::$T::INFINITY
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn neg_infinity() -> Self {
|
||||
::core::$T::NEG_INFINITY
|
||||
::std::$T::NEG_INFINITY
|
||||
}
|
||||
|
||||
#[inline]
|
||||
|
|
@ -1094,326 +950,264 @@ macro_rules! float_impl {
|
|||
|
||||
#[inline]
|
||||
fn min_value() -> Self {
|
||||
::core::$T::MIN
|
||||
::std::$T::MIN
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn min_positive_value() -> Self {
|
||||
::core::$T::MIN_POSITIVE
|
||||
::std::$T::MIN_POSITIVE
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn epsilon() -> Self {
|
||||
::core::$T::EPSILON
|
||||
::std::$T::EPSILON
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn max_value() -> Self {
|
||||
::core::$T::MAX
|
||||
::std::$T::MAX
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn is_nan(self) -> bool {
|
||||
<$T>::is_nan(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn is_infinite(self) -> bool {
|
||||
<$T>::is_infinite(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn is_finite(self) -> bool {
|
||||
<$T>::is_finite(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn is_normal(self) -> bool {
|
||||
<$T>::is_normal(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn classify(self) -> FpCategory {
|
||||
<$T>::classify(self)
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "std"))]
|
||||
#[inline]
|
||||
fn classify(self) -> FpCategory {
|
||||
$classify(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn floor(self) -> Self {
|
||||
<$T>::floor(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn ceil(self) -> Self {
|
||||
<$T>::ceil(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn round(self) -> Self {
|
||||
<$T>::round(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn trunc(self) -> Self {
|
||||
<$T>::trunc(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn fract(self) -> Self {
|
||||
<$T>::fract(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn abs(self) -> Self {
|
||||
<$T>::abs(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn signum(self) -> Self {
|
||||
<$T>::signum(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn is_sign_positive(self) -> bool {
|
||||
<$T>::is_sign_positive(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn is_sign_negative(self) -> bool {
|
||||
<$T>::is_sign_negative(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn mul_add(self, a: Self, b: Self) -> Self {
|
||||
<$T>::mul_add(self, a, b)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn recip(self) -> Self {
|
||||
<$T>::recip(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn powi(self, n: i32) -> Self {
|
||||
<$T>::powi(self, n)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn powf(self, n: Self) -> Self {
|
||||
<$T>::powf(self, n)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn sqrt(self) -> Self {
|
||||
<$T>::sqrt(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn exp(self) -> Self {
|
||||
<$T>::exp(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn exp2(self) -> Self {
|
||||
<$T>::exp2(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn ln(self) -> Self {
|
||||
<$T>::ln(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn log(self, base: Self) -> Self {
|
||||
<$T>::log(self, base)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn log2(self) -> Self {
|
||||
<$T>::log2(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn log10(self) -> Self {
|
||||
<$T>::log10(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn to_degrees(self) -> Self {
|
||||
<$T>::to_degrees(self)
|
||||
// NB: `f32` didn't stabilize this until 1.7
|
||||
// <$T>::to_degrees(self)
|
||||
self * (180. / ::std::$T::consts::PI)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn to_radians(self) -> Self {
|
||||
<$T>::to_radians(self)
|
||||
// NB: `f32` didn't stabilize this until 1.7
|
||||
// <$T>::to_radians(self)
|
||||
self * (::std::$T::consts::PI / 180.)
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "std"))]
|
||||
#[inline]
|
||||
fn to_degrees(self) -> Self {
|
||||
self * (180. / ::core::$T::consts::PI)
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "std"))]
|
||||
#[inline]
|
||||
fn to_radians(self) -> Self {
|
||||
self * (::core::$T::consts::PI / 180.)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn max(self, other: Self) -> Self {
|
||||
<$T>::max(self, other)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn min(self, other: Self) -> Self {
|
||||
<$T>::min(self, other)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
#[allow(deprecated)]
|
||||
fn abs_sub(self, other: Self) -> Self {
|
||||
<$T>::abs_sub(self, other)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn cbrt(self) -> Self {
|
||||
<$T>::cbrt(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn hypot(self, other: Self) -> Self {
|
||||
<$T>::hypot(self, other)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn sin(self) -> Self {
|
||||
<$T>::sin(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn cos(self) -> Self {
|
||||
<$T>::cos(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn tan(self) -> Self {
|
||||
<$T>::tan(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn asin(self) -> Self {
|
||||
<$T>::asin(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn acos(self) -> Self {
|
||||
<$T>::acos(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn atan(self) -> Self {
|
||||
<$T>::atan(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn atan2(self, other: Self) -> Self {
|
||||
<$T>::atan2(self, other)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn sin_cos(self) -> (Self, Self) {
|
||||
<$T>::sin_cos(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn exp_m1(self) -> Self {
|
||||
<$T>::exp_m1(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn ln_1p(self) -> Self {
|
||||
<$T>::ln_1p(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn sinh(self) -> Self {
|
||||
<$T>::sinh(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn cosh(self) -> Self {
|
||||
<$T>::cosh(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn tanh(self) -> Self {
|
||||
<$T>::tanh(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn asinh(self) -> Self {
|
||||
<$T>::asinh(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn acosh(self) -> Self {
|
||||
<$T>::acosh(self)
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[inline]
|
||||
fn atanh(self) -> Self {
|
||||
<$T>::atanh(self)
|
||||
|
|
@ -1445,21 +1239,6 @@ fn integer_decode_f32(f: f32) -> (u64, i16, i8) {
|
|||
(mantissa as u64, exponent, sign)
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "std"))]
|
||||
fn classify_f32(f: f32) -> FpCategory {
|
||||
const EXP_MASK: u32 = 0x7f800000;
|
||||
const MAN_MASK: u32 = 0x007fffff;
|
||||
|
||||
let bits: u32 = unsafe { mem::transmute(f) };
|
||||
match (bits & MAN_MASK, bits & EXP_MASK) {
|
||||
(0, 0) => FpCategory::Zero,
|
||||
(_, 0) => FpCategory::Subnormal,
|
||||
(0, EXP_MASK) => FpCategory::Infinite,
|
||||
(_, EXP_MASK) => FpCategory::Nan,
|
||||
_ => FpCategory::Normal,
|
||||
}
|
||||
}
|
||||
|
||||
fn integer_decode_f64(f: f64) -> (u64, i16, i8) {
|
||||
let bits: u64 = unsafe { mem::transmute(f) };
|
||||
let sign: i8 = if bits >> 63 == 0 {
|
||||
|
|
@ -1478,23 +1257,8 @@ fn integer_decode_f64(f: f64) -> (u64, i16, i8) {
|
|||
(mantissa, exponent, sign)
|
||||
}
|
||||
|
||||
#[cfg(not(feature = "std"))]
|
||||
fn classify_f64(f: f64) -> FpCategory {
|
||||
const EXP_MASK: u64 = 0x7ff0000000000000;
|
||||
const MAN_MASK: u64 = 0x000fffffffffffff;
|
||||
|
||||
let bits: u64 = unsafe { mem::transmute(f) };
|
||||
match (bits & MAN_MASK, bits & EXP_MASK) {
|
||||
(0, 0) => FpCategory::Zero,
|
||||
(_, 0) => FpCategory::Subnormal,
|
||||
(0, EXP_MASK) => FpCategory::Infinite,
|
||||
(_, EXP_MASK) => FpCategory::Nan,
|
||||
_ => FpCategory::Normal,
|
||||
}
|
||||
}
|
||||
|
||||
float_impl!(f32 integer_decode_f32 classify_f32);
|
||||
float_impl!(f64 integer_decode_f64 classify_f64);
|
||||
float_impl!(f32 integer_decode_f32);
|
||||
float_impl!(f64 integer_decode_f64);
|
||||
|
||||
macro_rules! float_const_impl {
|
||||
($(#[$doc:meta] $constant:ident,)+) => (
|
||||
|
|
@ -1510,7 +1274,7 @@ macro_rules! float_const_impl {
|
|||
$(
|
||||
#[inline]
|
||||
fn $constant() -> Self {
|
||||
::core::$T::consts::$constant
|
||||
::std::$T::consts::$constant
|
||||
}
|
||||
)+
|
||||
}
|
||||
|
|
@ -1555,34 +1319,20 @@ float_const_impl! {
|
|||
#[cfg(test)]
|
||||
mod tests {
|
||||
use Float;
|
||||
use core::f64::consts;
|
||||
|
||||
const DEG_RAD_PAIRS: [(f64, f64); 7] = [
|
||||
(0.0, 0.),
|
||||
(22.5, consts::FRAC_PI_8),
|
||||
(30.0, consts::FRAC_PI_6),
|
||||
(45.0, consts::FRAC_PI_4),
|
||||
(60.0, consts::FRAC_PI_3),
|
||||
(90.0, consts::FRAC_PI_2),
|
||||
(180.0, consts::PI),
|
||||
];
|
||||
|
||||
#[test]
|
||||
fn convert_deg_rad_core() {
|
||||
for &(deg, rad) in &DEG_RAD_PAIRS {
|
||||
assert!((Float::to_degrees(rad) - deg).abs() < 1e-6);
|
||||
assert!((Float::to_radians(deg) - rad).abs() < 1e-6);
|
||||
fn convert_deg_rad() {
|
||||
use std::f64::consts;
|
||||
|
||||
let (deg, rad) = (deg as f32, rad as f32);
|
||||
assert!((Float::to_degrees(rad) - deg).abs() < 1e-6);
|
||||
assert!((Float::to_radians(deg) - rad).abs() < 1e-6);
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(feature = "std")]
|
||||
#[test]
|
||||
fn convert_deg_rad_std() {
|
||||
use Float;
|
||||
const DEG_RAD_PAIRS: [(f64, f64); 7] = [
|
||||
(0.0, 0.),
|
||||
(22.5, consts::FRAC_PI_8),
|
||||
(30.0, consts::FRAC_PI_6),
|
||||
(45.0, consts::FRAC_PI_4),
|
||||
(60.0, consts::FRAC_PI_3),
|
||||
(90.0, consts::FRAC_PI_2),
|
||||
(180.0, consts::PI),
|
||||
];
|
||||
|
||||
for &(deg, rad) in &DEG_RAD_PAIRS {
|
||||
assert!((Float::to_degrees(rad) - deg).abs() < 1e-6);
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
use core::ops::{Add, Mul};
|
||||
use core::num::Wrapping;
|
||||
use std::ops::{Add, Mul};
|
||||
use std::num::Wrapping;
|
||||
|
||||
/// Defines an additive identity element for `Self`.
|
||||
pub trait Zero: Sized + Add<Self, Output = Self> {
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
use core::ops::{Not, BitAnd, BitOr, BitXor, Shl, Shr};
|
||||
use std::ops::{Not, BitAnd, BitOr, BitXor, Shl, Shr};
|
||||
|
||||
use {Num, NumCast};
|
||||
use bounds::Bounded;
|
||||
|
|
|
|||
|
|
@ -14,15 +14,9 @@
|
|||
html_root_url = "https://rust-num.github.io/num/",
|
||||
html_playground_url = "http://play.integer32.com/")]
|
||||
|
||||
#![deny(unconditional_recursion)]
|
||||
|
||||
#![cfg_attr(not(feature = "std"), no_std)]
|
||||
#[cfg(feature = "std")]
|
||||
extern crate core;
|
||||
|
||||
use core::ops::{Add, Sub, Mul, Div, Rem};
|
||||
use core::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign};
|
||||
use core::num::Wrapping;
|
||||
use std::ops::{Add, Sub, Mul, Div, Rem};
|
||||
use std::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign};
|
||||
use std::num::Wrapping;
|
||||
|
||||
pub use bounds::Bounded;
|
||||
pub use float::{Float, FloatConst};
|
||||
|
|
@ -135,10 +129,10 @@ impl<T> NumAssignRef for T where T: NumAssign + for<'r> NumAssignOps<&'r T> {}
|
|||
macro_rules! int_trait_impl {
|
||||
($name:ident for $($t:ty)*) => ($(
|
||||
impl $name for $t {
|
||||
type FromStrRadixErr = ::core::num::ParseIntError;
|
||||
type FromStrRadixErr = ::std::num::ParseIntError;
|
||||
#[inline]
|
||||
fn from_str_radix(s: &str, radix: u32)
|
||||
-> Result<Self, ::core::num::ParseIntError>
|
||||
-> Result<Self, ::std::num::ParseIntError>
|
||||
{
|
||||
<$t>::from_str_radix(s, radix)
|
||||
}
|
||||
|
|
@ -164,7 +158,7 @@ pub enum FloatErrorKind {
|
|||
Empty,
|
||||
Invalid,
|
||||
}
|
||||
// FIXME: core::num::ParseFloatError is stable in 1.0, but opaque to us,
|
||||
// FIXME: std::num::ParseFloatError is stable in 1.0, but opaque to us,
|
||||
// so there's not really any way for us to reuse it.
|
||||
#[derive(Debug)]
|
||||
pub struct ParseFloatError {
|
||||
|
|
@ -311,8 +305,8 @@ macro_rules! float_trait_impl {
|
|||
};
|
||||
|
||||
match (is_positive, exp) {
|
||||
(true, Ok(exp)) => Float::powi(base, exp as i32),
|
||||
(false, Ok(exp)) => 1.0 / Float::powi(base, exp as i32),
|
||||
(true, Ok(exp)) => base.powi(exp as i32),
|
||||
(false, Ok(exp)) => 1.0 / base.powi(exp as i32),
|
||||
(_, Err(_)) => return Err(PFE { kind: Invalid }),
|
||||
}
|
||||
},
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
use core::ops::{Add, Sub, Mul, Div};
|
||||
use std::ops::{Add, Sub, Mul, Div};
|
||||
|
||||
/// Performs addition that returns `None` instead of wrapping around on
|
||||
/// overflow.
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
use core::ops::{Add, Sub, Mul};
|
||||
use core::num::Wrapping;
|
||||
use std::ops::{Add, Sub, Mul};
|
||||
use std::num::Wrapping;
|
||||
|
||||
macro_rules! wrapping_impl {
|
||||
($trait_name:ident, $method:ident, $t:ty) => {
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
use core::ops::Mul;
|
||||
use std::ops::Mul;
|
||||
use {One, CheckedMul};
|
||||
|
||||
/// Raises a value to the power of exp, using exponentiation by squaring.
|
||||
|
|
|
|||
|
|
@ -1,8 +1,8 @@
|
|||
use core::ops::Neg;
|
||||
use core::{f32, f64};
|
||||
use core::num::Wrapping;
|
||||
use std::ops::Neg;
|
||||
use std::{f32, f64};
|
||||
use std::num::Wrapping;
|
||||
|
||||
use {Num, Float};
|
||||
use Num;
|
||||
|
||||
/// Useful functions for signed numbers (i.e. numbers that can be negative).
|
||||
pub trait Signed: Sized + Num + Neg<Output = Self> {
|
||||
|
|
@ -104,15 +104,16 @@ macro_rules! signed_float_impl {
|
|||
/// Computes the absolute value. Returns `NAN` if the number is `NAN`.
|
||||
#[inline]
|
||||
fn abs(&self) -> $t {
|
||||
(*self).abs()
|
||||
<$t>::abs(*self)
|
||||
}
|
||||
|
||||
/// The positive difference of two numbers. Returns `0.0` if the number is
|
||||
/// less than or equal to `other`, otherwise the difference between`self`
|
||||
/// and `other` is returned.
|
||||
#[inline]
|
||||
#[allow(deprecated)]
|
||||
fn abs_sub(&self, other: &$t) -> $t {
|
||||
if *self <= *other { 0. } else { *self - *other }
|
||||
<$t>::abs_sub(*self, *other)
|
||||
}
|
||||
|
||||
/// # Returns
|
||||
|
|
@ -122,7 +123,7 @@ macro_rules! signed_float_impl {
|
|||
/// - `NAN` if the number is NaN
|
||||
#[inline]
|
||||
fn signum(&self) -> $t {
|
||||
Float::signum(*self)
|
||||
<$t>::signum(*self)
|
||||
}
|
||||
|
||||
/// Returns `true` if the number is positive, including `+0.0` and `INFINITY`
|
||||
|
|
|
|||
Loading…
Reference in New Issue