oxedyne/fe2o3 — fe2o3_core/src/int.rs

1.3 KiB, 1 run

created by r1870400018:82, which is this file's identity for as long as the history lasts, whatever it is later renamed to

1	pub trait Bound {
2	fn max_size() -> Self;
3	fn min_size() -> Self;
4	}
5
6	macro_rules! impl_bound_for_ints {
7	($(($t:ty, $max:expr, $min:expr)),+) => {
8	$(
9	impl Bound for $t {
10	fn max_size() -> Self {
11	$max
12	}
13
14	fn min_size() -> Self {
15	$min
16	}
17	}
18	)+
19	};
20	}
21
22	impl_bound_for_ints!(
23	(i8, i8::MAX, i8::MIN),
24	(i16, i16::MAX, i16::MIN),
25	(i32, i32::MAX, i32::MIN),
26	(i64, i64::MAX, i64::MIN),
27	(i128, i128::MAX, i128::MIN),
28	(u8, u8::MAX, u8::MIN),
29	(u16, u16::MAX, u16::MIN),
30	(u32, u32::MAX, u32::MIN),
31	(u64, u64::MAX, u64::MIN),
32	(u128, u128::MAX, u128::MIN),
33	(isize, isize::MAX, isize::MIN),
34	(usize, usize::MAX, usize::MIN)
35	);
36
37	pub trait One {
38	fn one() -> Self;
39	}
40
41	pub trait Zero {
42	fn zero() -> Self;
43	}
44
45	macro_rules! impl_one_zero_for_ints {
46	($($t:ty),+) => {
47	$(
48	impl One for $t {
49	fn one() -> Self {
50	1
51	}
52	}
53
54	impl Zero for $t {
55	fn zero() -> Self {
56	0
57	}
58	}
59	)+
60	};
61	}
62
63	impl_one_zero_for_ints!(i8, i16, i32, i64, i128, u8, u16, u32, u64, u128, isize, usize);