Use a single global guard in mod real
This commit is contained in:
Josh Stone
parent
27b9202ff3
commit
b64ee3809c
153
src/real.rs
153
src/real.rs
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@ -1,9 +1,8 @@
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#![cfg(any(feature = "std", feature = "libm"))]
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use core::ops::Neg;
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use {Num, NumCast};
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#[cfg(any(feature = "std", feature = "libm"))]
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use Float;
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use {Float, Num, NumCast};
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// NOTE: These doctests have the same issue as those in src/float.rs.
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// They're testing the inherent methods directly, and not those of `Real`.
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@ -14,14 +13,11 @@ use Float;
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/// See [this Wikipedia article](https://en.wikipedia.org/wiki/Real_data_type)
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/// for a list of data types that could meaningfully implement this trait.
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///
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/// This trait is always available, however it requires either `std` or `libm`
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/// in order for `f32` and `f64` to implement it.
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#[cfg(any(feature = "std", feature = "libm"))]
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/// This trait is only available with the `std` feature, or with the `libm` feature otherwise.
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pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the smallest finite value that this type can represent.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -33,8 +29,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the smallest positive, normalized value that this type can represent.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -46,8 +41,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns epsilon, a small positive value.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -64,8 +58,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the largest finite value that this type can represent.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -76,8 +69,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the largest integer less than or equal to a number.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let f = 3.99;
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@ -90,8 +82,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the smallest integer greater than or equal to a number.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let f = 3.01;
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@ -105,8 +96,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the nearest integer to a number. Round half-way cases away from
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/// `0.0`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let f = 3.3;
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@ -119,8 +109,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Return the integer part of a number.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let f = 3.3;
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@ -133,8 +122,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the fractional part of a number.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 3.5;
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@ -150,8 +138,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Computes the absolute value of `self`. Returns `Float::nan()` if the
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/// number is `Float::nan()`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -174,8 +161,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()`
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/// - `Float::nan()` if the number is `Float::nan()`
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -191,8 +177,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns `true` if `self` is positive, including `+0.0`,
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/// `Float::infinity()`, and with newer versions of Rust `f64::NAN`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -210,8 +195,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns `true` if `self` is negative, including `-0.0`,
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/// `Float::neg_infinity()`, and with newer versions of Rust `-f64::NAN`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -232,8 +216,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Using `mul_add` can be more performant than an unfused multiply-add if
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/// the target architecture has a dedicated `fma` CPU instruction.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let m = 10.0;
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@ -249,8 +232,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Take the reciprocal (inverse) of a number, `1/x`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 2.0;
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@ -264,8 +246,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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///
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/// Using this function is generally faster than using `powf`
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 2.0;
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@ -277,8 +258,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Raise a number to a real number power.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 2.0;
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@ -296,8 +276,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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///
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/// If the implementing type doesn't support NaN, this method should panic if `self < 0`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let positive = 4.0;
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@ -312,8 +291,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns `e^(self)`, (the exponential function).
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let one = 1.0;
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@ -329,8 +307,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns `2^(self)`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let f = 2.0;
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@ -348,8 +325,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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///
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/// If `self <= 0` and this type does not support a NaN representation, this function should panic.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let one = 1.0;
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@ -369,8 +345,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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///
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/// If `self <= 0` and this type does not support a NaN representation, this function should panic.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let ten = 10.0;
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@ -393,8 +368,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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///
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/// If `self <= 0` and this type does not support a NaN representation, this function should panic.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let two = 2.0;
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@ -413,8 +387,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// If `self <= 0` and this type does not support a NaN representation, this function should panic.
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///
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let ten = 10.0;
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@ -428,8 +401,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Converts radians to degrees.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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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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@ -442,8 +414,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Converts degrees to radians.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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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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@ -456,8 +427,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the maximum of the two numbers.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 1.0;
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@ -469,8 +439,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Returns the minimum of the two numbers.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 1.0;
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@ -485,8 +454,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// * If `self <= other`: `0:0`
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/// * Else: `self - other`
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 3.0;
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@ -502,8 +470,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Take the cubic root of a number.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 8.0;
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@ -518,8 +485,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Calculate the length of the hypotenuse of a right-angle triangle given
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/// legs of length `x` and `y`.
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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///
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/// let x = 2.0;
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@ -534,8 +500,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Computes the sine of a number (in radians).
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -549,8 +514,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Computes the cosine of a number (in radians).
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -564,8 +528,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// Computes the tangent of a number (in radians).
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
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@ -585,8 +548,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
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/// If this type does not support a NaN representation, this function should panic
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/// if the number is outside the range [-1, 1].
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///
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#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
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#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
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/// ```
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/// use num_traits::real::Real;
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/// use std::f64;
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///
|
||||
|
|
@ -608,8 +570,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
/// If this type does not support a NaN representation, this function should panic
|
||||
/// if the number is outside the range [-1, 1].
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -625,8 +586,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
/// Computes the arctangent of a number. Return value is in radians in the
|
||||
/// range [-pi/2, pi/2];
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
///
|
||||
/// let f = 1.0;
|
||||
|
|
@ -645,8 +605,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
/// * `y >= 0`: `arctan(y/x) + pi` -> `(pi/2, pi]`
|
||||
/// * `y < 0`: `arctan(y/x) - pi` -> `(-pi, -pi/2)`
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -671,8 +630,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
/// Simultaneously computes the sine and cosine of the number, `x`. Returns
|
||||
/// `(sin(x), cos(x))`.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -690,8 +648,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
/// Returns `e^(self) - 1` in a way that is accurate even if the
|
||||
/// number is close to zero.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
///
|
||||
/// let x = 7.0;
|
||||
|
|
@ -711,8 +668,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
/// If this type does not support a NaN representation, this function should panic
|
||||
/// if `self-1 <= 0`.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -727,8 +683,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
|
||||
/// Hyperbolic sine function.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -746,8 +701,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
|
||||
/// Hyperbolic cosine function.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -765,8 +719,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
|
||||
/// Hyperbolic tangent function.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -784,8 +737,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
|
||||
/// Inverse hyperbolic sine function.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
///
|
||||
/// let x = 1.0;
|
||||
|
|
@ -799,8 +751,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
|
||||
/// Inverse hyperbolic cosine function.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
///
|
||||
/// let x = 1.0;
|
||||
|
|
@ -814,8 +765,7 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
|
||||
/// Inverse hyperbolic tangent function.
|
||||
///
|
||||
#[cfg_attr(any(feature = "std", feature = "libm"), doc = " ```")]
|
||||
#[cfg_attr(not(any(feature = "std", feature = "libm")), doc = " ```ignore")]
|
||||
/// ```
|
||||
/// use num_traits::real::Real;
|
||||
/// use std::f64;
|
||||
///
|
||||
|
|
@ -829,7 +779,6 @@ pub trait Real: Num + Copy + NumCast + PartialOrd + Neg<Output = Self> {
|
|||
fn atanh(self) -> Self;
|
||||
}
|
||||
|
||||
#[cfg(any(feature = "std", feature = "libm"))]
|
||||
impl<T: Float> Real for T {
|
||||
forward! {
|
||||
Float::min_value() -> Self;
|
||||
|
|
|
|||
Loading…
Reference in New Issue