flint-sys 0.9.0

Bindings to the FLINT C library
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
79
80
81
82
83

/*
    Copyright (C) 2012-2015 Fredrik Johansson

    This file is part of FLINT.

    FLINT 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/>.
*/

#include "arb.h"

void
arb_add_error_arf(arb_t x, const arf_t err)
{
    mag_t t;

    if (arf_is_zero(err))
        return;

    if (mag_is_zero(arb_radref(x)))
    {
        arf_get_mag(arb_radref(x), err);
        return;
    }

    mag_init(t);
    arf_get_mag(t, err);
    mag_add(arb_radref(x), arb_radref(x), t);
    mag_clear(t);
}

void
arb_add_error_2exp_si(arb_t x, slong err)
{
    fmpz_t t;

    if (mag_is_zero(arb_radref(x)))
    {
        mag_one(arb_radref(x));
        mag_mul_2exp_si(arb_radref(x), arb_radref(x), err);
        return;
    }

    fmpz_init(t);
    fmpz_set_si(t, err);
    mag_add_2exp_fmpz(arb_radref(x), arb_radref(x), t);
    fmpz_clear(t);
}

void
arb_add_error_2exp_fmpz(arb_t x, const fmpz_t err)
{
    if (mag_is_zero(arb_radref(x)))
    {
        mag_one(arb_radref(x));
        mag_mul_2exp_fmpz(arb_radref(x), arb_radref(x), err);
        return;
    }

    mag_add_2exp_fmpz(arb_radref(x), arb_radref(x), err);
}

void
arb_add_error(arb_t x, const arb_t err)
{
    mag_t u;

    if (arb_is_zero(err))
        return;

    if (mag_is_zero(arb_radref(x)))
    {
        arb_get_mag(arb_radref(x), err);
        return;
    }

    mag_init(u);
    arb_get_mag(u, err);
    mag_add(arb_radref(x), arb_radref(x), u);
    mag_clear(u);
}