96 lines
2.4 KiB
Rust
96 lines
2.4 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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extern mod std;
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use core::num::Float::{
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NaN, infinity, neg_infinity
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};
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pub fn main() {
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let nan = NaN::<float>();
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assert!((nan).is_NaN());
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let inf = infinity::<float>();
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assert_eq!(-inf, neg_infinity::<float>());
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assert!( nan != nan);
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assert!( nan != -nan);
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assert!(-nan != -nan);
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assert!(-nan != nan);
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assert!( nan != 1.);
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assert!( nan != 0.);
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assert!( nan != inf);
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assert!( nan != -inf);
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assert!( 1. != nan);
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assert!( 0. != nan);
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assert!( inf != nan);
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assert!(-inf != nan);
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assert!(!( nan == nan));
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assert!(!( nan == -nan));
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assert!(!( nan == 1.));
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assert!(!( nan == 0.));
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assert!(!( nan == inf));
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assert!(!( nan == -inf));
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assert!(!( 1. == nan));
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assert!(!( 0. == nan));
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assert!(!( inf == nan));
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assert!(!(-inf == nan));
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assert!(!(-nan == nan));
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assert!(!(-nan == -nan));
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assert!(!( nan > nan));
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assert!(!( nan > -nan));
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assert!(!( nan > 0.));
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assert!(!( nan > inf));
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assert!(!( nan > -inf));
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assert!(!( 0. > nan));
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assert!(!( inf > nan));
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assert!(!(-inf > nan));
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assert!(!(-nan > nan));
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assert!(!(nan < 0.));
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assert!(!(nan < 1.));
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assert!(!(nan < -1.));
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assert!(!(nan < inf));
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assert!(!(nan < -inf));
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assert!(!(nan < nan));
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assert!(!(nan < -nan));
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assert!(!( 0. < nan));
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assert!(!( 1. < nan));
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assert!(!( -1. < nan));
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assert!(!( inf < nan));
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assert!(!(-inf < nan));
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assert!(!(-nan < nan));
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assert!((nan + inf).is_NaN());
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assert!((nan + -inf).is_NaN());
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assert!((nan + 0.).is_NaN());
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assert!((nan + 1.).is_NaN());
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assert!((nan * 1.).is_NaN());
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assert!((nan / 1.).is_NaN());
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assert!((nan / 0.).is_NaN());
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assert!((0f/0f).is_NaN());
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assert!((-inf + inf).is_NaN());
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assert!((inf - inf).is_NaN());
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assert!(!(-1f).is_NaN());
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assert!(!(0f).is_NaN());
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assert!(!(0.1f).is_NaN());
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assert!(!(1f).is_NaN());
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assert!(!(inf).is_NaN());
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assert!(!(-inf).is_NaN());
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assert!(!(1./-inf).is_NaN());
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}
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