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use std;
pub trait Trig {
fn sin(self) -> Self;
fn cos(self) -> Self;
fn tan(self) -> Self;
fn asin(self) -> Self;
fn acos(self) -> Self;
fn atan2(self, other: Self) -> Self;
}
macro_rules! impl_float_trig {
($t: ty) => {
impl Trig for $t {
fn sin(self) -> Self {
self.sin()
}
fn cos(self) -> Self {
self.cos()
}
fn tan(self) -> Self {
self.tan()
}
fn asin(self) -> Self {
self.asin()
}
fn acos(self) -> Self {
self.acos()
}
fn atan2(self, other: Self) -> Self {
self.atan2(other)
}
}
}
}
impl_float_trig!(f32);
impl_float_trig!(f64);
pub trait Pow {
fn pow(self, n: i32) -> Self;
fn sqrt(self) -> Self;
}
macro_rules! impl_float_pow {
($t: ty) => {
impl Pow for $t {
fn pow(self, n: i32) -> Self {
self.powi(n)
}
fn sqrt(self) -> Self {
self.sqrt()
}
}
}
}
macro_rules! impl_int_pow {
($t: ty) => {
impl Pow for $t {
fn pow(self, n: i32) -> Self {
if n > 0 {
self.pow(n as u32)
} else {
(self as f64).powi(n) as Self
}
}
fn sqrt(self) -> Self {
(self as f64).sqrt() as Self
}
}
}
}
impl_float_pow!(f32);
impl_float_pow!(f64);
impl_int_pow!(i8);
impl_int_pow!(i16);
impl_int_pow!(i32);
impl_int_pow!(i64);
impl_int_pow!(u8);
impl_int_pow!(u16);
impl_int_pow!(u32);
impl_int_pow!(u64);
use std::ops::{Add, Sub, Mul, Div, Rem, Neg};
pub trait ArithmeticOps: Add<Output=Self> + Sub<Output=Self> + Mul<Output=Self> + Div<Output=Self> + Rem<Output=Self> where Self: std::marker::Sized {}
impl<T> ArithmeticOps for T where T: Add<Output=T> + Sub<Output=T> + Mul<Output=T> + Div<Output=T> + Rem<Output=T> {}
pub trait SignedArithmeticOps: ArithmeticOps + Neg<Output=Self> where Self: std::marker::Sized {}
impl<T> SignedArithmeticOps for T where T: ArithmeticOps + Neg<Output=T> {}
pub trait FractionOps {
fn recip(self) -> Self;
fn pi() -> Self;
fn two_pi() -> Self;
}
macro_rules! impl_fraction_float {
($t: ty, $pi: expr) => {
impl FractionOps for $t {
fn recip(self) -> Self {
self.recip()
}
fn pi() -> Self {
$pi
}
fn two_pi() -> Self {
2.0 * $pi
}
}
}
}
impl_fraction_float!(f32, std::f32::consts::PI);
impl_fraction_float!(f64, std::f64::consts::PI);
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