46b6a3fb7f
Add missing functions for atan2, cosh, sinh, and tan. Also add f32 calls and tests for cbrt and hypot.
89 lines
3.0 KiB
Rust
89 lines
3.0 KiB
Rust
// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
macro_rules! assert_approx_eq {
|
|
($a:expr, $b:expr) => ({
|
|
let (a, b) = (&$a, &$b);
|
|
assert!((*a - *b).abs() < 1.0e-6,
|
|
"{} is not approximately equal to {}", *a, *b);
|
|
})
|
|
}
|
|
|
|
pub fn main() {
|
|
use std::f32;
|
|
use std::f64;
|
|
|
|
assert_approx_eq!(64f32.sqrt(), 8f32);
|
|
assert_approx_eq!(64f64.sqrt(), 8f64);
|
|
|
|
assert_approx_eq!(25f32.powi(-2), 0.0016f32);
|
|
assert_approx_eq!(23.2f64.powi(2), 538.24f64);
|
|
|
|
assert_approx_eq!(0f32.sin(), 0f32);
|
|
assert_approx_eq!((f64::consts::PI / 2f64).sin(), 1f64);
|
|
|
|
assert_approx_eq!(0f32.cos(), 1f32);
|
|
assert_approx_eq!((f64::consts::PI * 2f64).cos(), 1f64);
|
|
|
|
assert_approx_eq!(25f32.powf(-2f32), 0.0016f32);
|
|
assert_approx_eq!(400f64.powf(0.5f64), 20f64);
|
|
|
|
assert_approx_eq!((1f32.exp() - f32::consts::E).abs(), 0f32);
|
|
assert_approx_eq!(1f64.exp(), f64::consts::E);
|
|
|
|
assert_approx_eq!(10f32.exp2(), 1024f32);
|
|
assert_approx_eq!(50f64.exp2(), 1125899906842624f64);
|
|
|
|
assert_approx_eq!((f32::consts::E.ln() - 1f32).abs(), 0f32);
|
|
assert_approx_eq!(1f64.ln(), 0f64);
|
|
|
|
assert_approx_eq!(10f32.log10(), 1f32);
|
|
assert_approx_eq!(f64::consts::E.log10(), f64::consts::LOG10_E);
|
|
|
|
assert_approx_eq!(8f32.log2(), 3f32);
|
|
assert_approx_eq!(f64::consts::E.log2(), f64::consts::LOG2_E);
|
|
|
|
assert_approx_eq!(3.0f32.mul_add(2.0f32, 5.0f32), 11.0);
|
|
assert_eq!(0.0f32.mul_add(-2.0, f32::consts::E), f32::consts::E);
|
|
assert_approx_eq!(3.0f64.mul_add(2.0, 5.0), 11.0);
|
|
assert_eq!(0.0f64.mul_add(-2.0f64, f64::consts::E), f64::consts::E);
|
|
|
|
assert_approx_eq!((-1.0f32).abs(), 1.0f32);
|
|
assert_approx_eq!(34.2f64.abs(), 34.2f64);
|
|
|
|
assert_approx_eq!(3.8f32.floor(), 3.0f32);
|
|
assert_approx_eq!((-1.1f64).floor(), -2.0f64);
|
|
|
|
assert_approx_eq!((-2.3f32).ceil(), -2.0f32);
|
|
assert_approx_eq!(3.8f64.ceil(), 4.0f64);
|
|
|
|
assert_approx_eq!(0.1f32.trunc(), 0.0f32);
|
|
assert_approx_eq!((-0.1f64).trunc(), 0.0f64);
|
|
|
|
assert_approx_eq!(27.0f32.cbrt(), 3.0f32);
|
|
assert_approx_eq!(27.0f64.cbrt(), 3.0f64);
|
|
|
|
assert_approx_eq!(3.0f32.hypot(4.0f32), 5.0f32);
|
|
assert_approx_eq!(3.0f64.hypot(4.0f64), 5.0f64);
|
|
|
|
assert_approx_eq!(1.0f32.atan2(2.0f32), 0.46364761f32);
|
|
assert_approx_eq!(1.0f32.atan2(2.0f32), 0.46364761f32);
|
|
|
|
assert_approx_eq!(1.0f32.cosh(), 1.54308f32);
|
|
assert_approx_eq!(1.0f64.cosh(), 1.54308f64);
|
|
|
|
assert_approx_eq!(1.0f32.sinh(), 1.1752012f32);
|
|
assert_approx_eq!(1.0f64.sinh(), 1.1752012f64);
|
|
|
|
assert_approx_eq!(1.0f32.tan(), 1.557408f32);
|
|
assert_approx_eq!(1.0f64.tan(), 1.557408f64);
|
|
|
|
}
|