malachite-float 0.9.1

The arbitrary-precision floating-point type Float, with efficient algorithms partially derived from MPFR.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78

// Copyright © 2026 Mikhail Hogrefe
//
// This file is part of Malachite.
//
// Malachite is free software: you can redistribute it and/or modify it under the terms of the GNU
// Lesser General Public License (LGPL) as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version. See <https://www.gnu.org/licenses/>.

use malachite_base::num::arithmetic::traits::Sign;
use malachite_base::test_util::bench::{BenchmarkType, run_benchmark};
use malachite_base::test_util::generators::common::{GenConfig, GenMode};
use malachite_base::test_util::runner::Runner;
use malachite_float::ComparableFloat;
use malachite_float::test_util::bench::bucketers::float_complexity_bucketer;
use malachite_float::test_util::generators::{float_gen_var_2, float_gen_var_14};
use std::cmp::Ordering::*;

pub(crate) fn register(runner: &mut Runner) {
    register_demo!(runner, demo_float_sign);
    register_demo!(runner, demo_float_sign_debug);
    register_demo!(runner, demo_float_sign_extreme);
    register_demo!(runner, demo_float_sign_extreme_debug);

    register_bench!(runner, benchmark_float_sign);
}

fn demo_float_sign(gm: GenMode, config: &GenConfig, limit: usize) {
    for n in float_gen_var_2().get(gm, config).take(limit) {
        match n.sign() {
            Less => println!("{n} is negative"),
            Equal => println!("{n} is zero"),
            Greater => println!("{n} is positive"),
        }
    }
}

fn demo_float_sign_debug(gm: GenMode, config: &GenConfig, limit: usize) {
    for n in float_gen_var_2().get(gm, config).take(limit) {
        match n.sign() {
            Less => println!("{:#x} is negative", ComparableFloat(n)),
            Equal => println!("{:#x} is zero", ComparableFloat(n)),
            Greater => println!("{:#x} is positive", ComparableFloat(n)),
        }
    }
}

fn demo_float_sign_extreme(gm: GenMode, config: &GenConfig, limit: usize) {
    for n in float_gen_var_14().get(gm, config).take(limit) {
        match n.sign() {
            Less => println!("{n} is negative"),
            Equal => println!("{n} is zero"),
            Greater => println!("{n} is positive"),
        }
    }
}

fn demo_float_sign_extreme_debug(gm: GenMode, config: &GenConfig, limit: usize) {
    for n in float_gen_var_14().get(gm, config).take(limit) {
        match n.sign() {
            Less => println!("{:#x} is negative", ComparableFloat(n)),
            Equal => println!("{:#x} is zero", ComparableFloat(n)),
            Greater => println!("{:#x} is positive", ComparableFloat(n)),
        }
    }
}

fn benchmark_float_sign(gm: GenMode, config: &GenConfig, limit: usize, file_name: &str) {
    run_benchmark(
        "Float.sign()",
        BenchmarkType::Single,
        float_gen_var_2().get(gm, config),
        gm.name(),
        limit,
        file_name,
        &float_complexity_bucketer("n"),
        &mut [("Malachite", &mut |n| no_out!(n.sign()))],
    );
}