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use num_traits::float::FloatCore;
use num_traits::{Num, NumCast, One, ToPrimitive, Zero};
use ordered_float::NotNan;
use std::num::FpCategory;
use std::ops::{Add, Div, Mul, Neg, Rem, Sub};
#[derive(Copy, Clone, PartialOrd, PartialEq)]
struct EvilFloat(f32);
impl Zero for EvilFloat {
fn zero() -> Self {
todo!()
}
fn is_zero(&self) -> bool {
todo!()
}
}
impl Add for EvilFloat {
type Output = Self;
fn add(self, _: Self) -> Self::Output {
todo!()
}
}
impl One for EvilFloat {
fn one() -> Self {
todo!()
}
}
impl Mul for EvilFloat {
type Output = Self;
fn mul(self, _: Self) -> Self::Output {
todo!()
}
}
impl Sub for EvilFloat {
type Output = Self;
fn sub(self, _: Self) -> Self::Output {
todo!()
}
}
impl Div for EvilFloat {
type Output = Self;
fn div(self, _: Self) -> Self::Output {
todo!()
}
}
impl Rem for EvilFloat {
type Output = Self;
fn rem(self, _: Self) -> Self::Output {
todo!()
}
}
impl NumCast for EvilFloat {
fn from<T: ToPrimitive>(_: T) -> Option<Self> {
todo!()
}
}
impl ToPrimitive for EvilFloat {
fn to_i64(&self) -> Option<i64> {
todo!()
}
fn to_u64(&self) -> Option<u64> {
todo!()
}
}
impl Neg for EvilFloat {
type Output = Self;
fn neg(self) -> Self::Output {
todo!()
}
}
impl FloatCore for EvilFloat {
fn is_nan(self) -> bool {
false
}
fn infinity() -> Self {
todo!()
}
fn neg_infinity() -> Self {
todo!()
}
fn nan() -> Self {
todo!()
}
fn neg_zero() -> Self {
todo!()
}
fn min_value() -> Self {
todo!()
}
fn min_positive_value() -> Self {
todo!()
}
fn epsilon() -> Self {
todo!()
}
fn max_value() -> Self {
todo!()
}
fn classify(self) -> FpCategory {
todo!()
}
fn to_degrees(self) -> Self {
todo!()
}
fn to_radians(self) -> Self {
todo!()
}
fn integer_decode(self) -> (u64, i16, i8) {
todo!()
}
}
impl Num for EvilFloat {
type FromStrRadixErr = ();
fn from_str_radix(_: &str, _: u32) -> Result<Self, Self::FromStrRadixErr> {
todo!()
}
}
#[test]
#[should_panic]
fn test_cmp_panic() {
let evil_value = NotNan::new(EvilFloat(f32::NAN)).unwrap();
let x = NotNan::new(EvilFloat(0.0)).unwrap();
let _ = evil_value.cmp(&x);
}
|
