sj/number/impls/
non_zeros.rs

1/*
2==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--==--
3
4SJ
5
6Copyright (C) 2019-2025  Anonymous
7
8There are several releases over multiple years,
9they are listed as ranges, such as: "2019-2025".
10
11This program is free software: you can redistribute it and/or modify
12it under the terms of the GNU Lesser General Public License as published by
13the Free Software Foundation, either version 3 of the License, or
14(at your option) any later version.
15
16This program is distributed in the hope that it will be useful,
17but WITHOUT ANY WARRANTY; without even the implied warranty of
18MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19GNU Lesser General Public License for more details.
20
21You should have received a copy of the GNU Lesser General Public License
22along with this program.  If not, see <https://www.gnu.org/licenses/>.
23
24::--::--::--::--::--::--::--::--::--::--::--::--::--::--::--::--
25*/
26
27//! # `NonZero*`
28
29use {
30    core::num::{NonZeroI128, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI8, NonZeroU128, NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU8},
31    crate::{Error, Number, Result},
32};
33
34#[cfg(any(target_pointer_width = "16", target_pointer_width = "32", target_pointer_width = "64"))]
35use core::num::{NonZeroIsize, NonZeroUsize};
36
37macro_rules! impl_from_non_zeros_for_number { ($($ty: ty),+$(,)?) => {
38    $(
39        impl From<&$ty> for Number {
40
41            fn from(n: &$ty) -> Self {
42                Self::from(n.get())
43            }
44
45        }
46
47        impl From<$ty> for Number {
48
49            fn from(n: $ty) -> Self {
50                Self::from(n.get())
51            }
52
53        }
54    )+
55}}
56
57impl_from_non_zeros_for_number!(
58    NonZeroU8, NonZeroU16, NonZeroU32, NonZeroU64, NonZeroU128,
59    NonZeroI8, NonZeroI16, NonZeroI32, NonZeroI64, NonZeroI128,
60);
61
62#[cfg(any(target_pointer_width = "16", target_pointer_width = "32", target_pointer_width = "64"))]
63impl_from_non_zeros_for_number!(NonZeroUsize, NonZeroIsize);
64
65macro_rules! impl_try_from_number_for_non_zeros { ($(($non_zero: ty, $ty: ty)),+$(,)?) => {
66    $(
67        impl TryFrom<&Number> for $non_zero {
68
69            type Error = Error;
70
71            fn try_from(n: &Number) -> Result<Self> {
72                Self::try_from(<$ty>::try_from(n)?).map_err(|e| err!("{e}"))
73            }
74
75        }
76
77        impl TryFrom<Number> for $non_zero {
78
79            type Error = Error;
80
81            fn try_from(n: Number) -> Result<Self> {
82                Self::try_from(&n)
83            }
84
85        }
86    )+
87}}
88
89impl_try_from_number_for_non_zeros!(
90    (NonZeroI8, i8), (NonZeroI16, i16), (NonZeroI32, i32), (NonZeroI64, i64), (NonZeroI128, i128), (NonZeroIsize, isize),
91    (NonZeroU8, u8), (NonZeroU16, u16), (NonZeroU32, u32), (NonZeroU64, u64), (NonZeroU128, u128), (NonZeroUsize, usize),
92);
sj/number/impls/non_zeros.rs

sj/number/impls/
non_zeros.rs
