/rust/registry/src/index.crates.io-6f17d22bba15001f/num-traits-0.2.19/src/bounds.rs

Source (jump to first uncovered line)
use core::num::Wrapping;
use core::{f32, f64};
use core::{i128, i16, i32, i64, i8, isize};
use core::{u128, u16, u32, u64, u8, usize};

/// Numbers which have upper and lower bounds
pub trait Bounded {
    // FIXME (#5527): These should be associated constants
    /// Returns the smallest finite number this type can represent
    fn min_value() -> Self;
    /// Returns the largest finite number this type can represent
    fn max_value() -> Self;
}

/// Numbers which have lower bounds
pub trait LowerBounded {
    /// Returns the smallest finite number this type can represent
    fn min_value() -> Self;
}

// FIXME: With a major version bump, this should be a supertrait instead
impl<T: Bounded> LowerBounded for T {
    fn min_value() -> T {
        Bounded::min_value()
    }
}

/// Numbers which have upper bounds
pub trait UpperBounded {
    /// Returns the largest finite number this type can represent
    fn max_value() -> Self;
}

// FIXME: With a major version bump, this should be a supertrait instead
impl<T: Bounded> UpperBounded for T {
    fn max_value() -> T {
        Bounded::max_value()
    }
}

macro_rules! bounded_impl {
    ($t:ty, $min:expr, $max:expr) => {
        impl Bounded for $t {
            #[inline]
            fn min_value() -> $t {
                $min
            }

            #[inline]
            fn max_value() -> $t {
                $max
            }
        }
    };
}

bounded_impl!(usize, usize::MIN, usize::MAX);
bounded_impl!(u8, u8::MIN, u8::MAX);
bounded_impl!(u16, u16::MIN, u16::MAX);
bounded_impl!(u32, u32::MIN, u32::MAX);
bounded_impl!(u64, u64::MIN, u64::MAX);
bounded_impl!(u128, u128::MIN, u128::MAX);

bounded_impl!(isize, isize::MIN, isize::MAX);
bounded_impl!(i8, i8::MIN, i8::MAX);
bounded_impl!(i16, i16::MIN, i16::MAX);
bounded_impl!(i32, i32::MIN, i32::MAX);
bounded_impl!(i64, i64::MIN, i64::MAX);
bounded_impl!(i128, i128::MIN, i128::MAX);

impl<T: Bounded> Bounded for Wrapping<T> {
    fn min_value() -> Self {
        Wrapping(T::min_value())
    }
    fn max_value() -> Self {
        Wrapping(T::max_value())
    }
}

bounded_impl!(f32, f32::MIN, f32::MAX);

macro_rules! for_each_tuple_ {
    ( $m:ident !! ) => (
        $m! { }
    );
    ( $m:ident !! $h:ident, $($t:ident,)* ) => (
        $m! { $h $($t)* }
        for_each_tuple_! { $m !! $($t,)* }
    );
}
macro_rules! for_each_tuple {
    ($m:ident) => {
        for_each_tuple_! { $m !! A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, }
    };
}

macro_rules! bounded_tuple {
    ( $($name:ident)* ) => (
        impl<$($name: Bounded,)*> Bounded for ($($name,)*) {
            #[inline]
            fn min_value() -> Self {
                ($($name::min_value(),)*)
            }
            #[inline]
            fn max_value() -> Self {
                ($($name::max_value(),)*)
            }
        }
    );
}

for_each_tuple!(bounded_tuple);
bounded_impl!(f64, f64::MIN, f64::MAX);

#[test]
fn wrapping_bounded() {
    macro_rules! test_wrapping_bounded {
        ($($t:ty)+) => {
            $(
                assert_eq!(<Wrapping<$t> as Bounded>::min_value().0, <$t>::min_value());
                assert_eq!(<Wrapping<$t> as Bounded>::max_value().0, <$t>::max_value());
            )+
        };
    }

    test_wrapping_bounded!(usize u8 u16 u32 u64 isize i8 i16 i32 i64);
}

#[test]
fn wrapping_bounded_i128() {
    macro_rules! test_wrapping_bounded {
        ($($t:ty)+) => {
            $(
                assert_eq!(<Wrapping<$t> as Bounded>::min_value().0, <$t>::min_value());
                assert_eq!(<Wrapping<$t> as Bounded>::max_value().0, <$t>::max_value());
            )+
        };
    }

    test_wrapping_bounded!(u128 i128);
}

#[test]
fn wrapping_is_bounded() {
    fn require_bounded<T: Bounded>(_: &T) {}
    require_bounded(&Wrapping(42_u32));
    require_bounded(&Wrapping(-42));
}

Line	Count	Source (jump to first uncovered line)
1		use core::num::Wrapping;
2		use core::{f32, f64};
3		use core::{i128, i16, i32, i64, i8, isize};
4		use core::{u128, u16, u32, u64, u8, usize};
5
6		/// Numbers which have upper and lower bounds
7		pub trait Bounded {
8		// FIXME (#5527): These should be associated constants
9		/// Returns the smallest finite number this type can represent
10		fn min_value() -> Self;
11		/// Returns the largest finite number this type can represent
12		fn max_value() -> Self;
13		}
14
15		/// Numbers which have lower bounds
16		pub trait LowerBounded {
17		/// Returns the smallest finite number this type can represent
18		fn min_value() -> Self;
19		}
20
21		// FIXME: With a major version bump, this should be a supertrait instead
22		impl<T: Bounded> LowerBounded for T {
23	0	fn min_value() -> T {
24	0	Bounded::min_value()
25	0	}
26		}
27
28		/// Numbers which have upper bounds
29		pub trait UpperBounded {
30		/// Returns the largest finite number this type can represent
31		fn max_value() -> Self;
32		}
33
34		// FIXME: With a major version bump, this should be a supertrait instead
35		impl<T: Bounded> UpperBounded for T {
36	0	fn max_value() -> T {
37	0	Bounded::max_value()
38	0	}
39		}
40
41		macro_rules! bounded_impl {
42		($t:ty, $min:expr, $max:expr) => {
43		impl Bounded for $t {
44		#[inline]
45	0	fn min_value() -> $t {
46	0	$min
47	0	} Unexecuted instantiation: <u8 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <u16 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <f32 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <usize as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <u8 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <u16 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <u32 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <u64 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <u128 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <isize as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <i8 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <i16 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <i32 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <i64 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <i128 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <f32 as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <f64 as num_traits::bounds::Bounded>::min_value
48
49		#[inline]
50	0	fn max_value() -> $t {
51	0	$max
52	0	} Unexecuted instantiation: <u8 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u16 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <f32 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <usize as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u8 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u16 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u32 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u64 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u128 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <isize as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i8 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i16 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i32 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i64 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i128 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <usize as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u8 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u16 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u32 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u64 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <u128 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <isize as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i8 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i16 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i32 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i64 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <i128 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <f32 as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <f64 as num_traits::bounds::Bounded>::max_value
53		}
54		};
55		}
56
57		bounded_impl!(usize, usize::MIN, usize::MAX);
58		bounded_impl!(u8, u8::MIN, u8::MAX);
59		bounded_impl!(u16, u16::MIN, u16::MAX);
60		bounded_impl!(u32, u32::MIN, u32::MAX);
61		bounded_impl!(u64, u64::MIN, u64::MAX);
62		bounded_impl!(u128, u128::MIN, u128::MAX);
63
64		bounded_impl!(isize, isize::MIN, isize::MAX);
65		bounded_impl!(i8, i8::MIN, i8::MAX);
66		bounded_impl!(i16, i16::MIN, i16::MAX);
67		bounded_impl!(i32, i32::MIN, i32::MAX);
68		bounded_impl!(i64, i64::MIN, i64::MAX);
69		bounded_impl!(i128, i128::MIN, i128::MAX);
70
71		impl<T: Bounded> Bounded for Wrapping<T> {
72	0	fn min_value() -> Self {
73	0	Wrapping(T::min_value())
74	0	}
75	0	fn max_value() -> Self {
76	0	Wrapping(T::max_value())
77	0	}
78		}
79
80		bounded_impl!(f32, f32::MIN, f32::MAX);
81
82		macro_rules! for_each_tuple_ {
83		( $m:ident !! ) => (
84		$m! { }
85		);
86		( $m:ident !! $h:ident, $($t:ident,)* ) => (
87		$m! { $h $($t)* }
88		for_each_tuple_! { $m !! $($t,)* }
89		);
90		}
91		macro_rules! for_each_tuple {
92		($m:ident) => {
93		for_each_tuple_! { $m !! A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, }
94		};
95		}
96
97		macro_rules! bounded_tuple {
98		( $($name:ident)* ) => (
99		impl<$($name: Bounded,)> Bounded for ($($name,)) {
100		#[inline]
101	0	fn min_value() -> Self {
102	0	($($name::min_value(),)*)
103	0	} Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_, _) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <(_,) as num_traits::bounds::Bounded>::min_value Unexecuted instantiation: <() as num_traits::bounds::Bounded>::min_value
104		#[inline]
105	0	fn max_value() -> Self {
106	0	($($name::max_value(),)*)
107	0	} Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_, _) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <(_,) as num_traits::bounds::Bounded>::max_value Unexecuted instantiation: <() as num_traits::bounds::Bounded>::max_value
108		}
109		);
110		}
111
112		for_each_tuple!(bounded_tuple);
113		bounded_impl!(f64, f64::MIN, f64::MAX);
114
115		#[test]
116		fn wrapping_bounded() {
117		macro_rules! test_wrapping_bounded {
118		($($t:ty)+) => {
119		$(
120		assert_eq!(<Wrapping<$t> as Bounded>::min_value().0, <$t>::min_value());
121		assert_eq!(<Wrapping<$t> as Bounded>::max_value().0, <$t>::max_value());
122		)+
123		};
124		}
125
126		test_wrapping_bounded!(usize u8 u16 u32 u64 isize i8 i16 i32 i64);
127		}
128
129		#[test]
130		fn wrapping_bounded_i128() {
131		macro_rules! test_wrapping_bounded {
132		($($t:ty)+) => {
133		$(
134		assert_eq!(<Wrapping<$t> as Bounded>::min_value().0, <$t>::min_value());
135		assert_eq!(<Wrapping<$t> as Bounded>::max_value().0, <$t>::max_value());
136		)+
137		};
138		}
139
140		test_wrapping_bounded!(u128 i128);
141		}
142
143		#[test]
144		fn wrapping_is_bounded() {
145		fn require_bounded<T: Bounded>(_: &T) {}
146		require_bounded(&Wrapping(42_u32));
147		require_bounded(&Wrapping(-42));
148		}

Coverage Report

Created: 2025-07-01 06:50