/rust/registry/src/index.crates.io-6f17d22bba15001f/num-traits-0.2.15/src/bounds.rs

Source (jump to first uncovered line)
use core::num::Wrapping;
use core::{f32, f64};
#[cfg(has_i128)]
use core::{i128, u128};
use core::{i16, i32, i64, i8, isize};
use core::{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);
#[cfg(has_i128)]
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);
#[cfg(has_i128)]
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);
}

#[cfg(has_i128)]
#[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		#[cfg(has_i128)]
4		use core::{i128, u128};
5		use core::{i16, i32, i64, i8, isize};
6		use core::{u16, u32, u64, u8, usize};
7
8		/// Numbers which have upper and lower bounds
9		pub trait Bounded {
10		// FIXME (#5527): These should be associated constants
11		/// Returns the smallest finite number this type can represent
12		fn min_value() -> Self;
13		/// Returns the largest finite number this type can represent
14		fn max_value() -> Self;
15		}
16
17		/// Numbers which have lower bounds
18		pub trait LowerBounded {
19		/// Returns the smallest finite number this type can represent
20		fn min_value() -> Self;
21		}
22
23		// FIXME: With a major version bump, this should be a supertrait instead
24		impl<T: Bounded> LowerBounded for T {
25	0	fn min_value() -> T {
26	0	Bounded::min_value()
27	0	}
28		}
29
30		/// Numbers which have upper bounds
31		pub trait UpperBounded {
32		/// Returns the largest finite number this type can represent
33		fn max_value() -> Self;
34		}
35
36		// FIXME: With a major version bump, this should be a supertrait instead
37		impl<T: Bounded> UpperBounded for T {
38	0	fn max_value() -> T {
39	0	Bounded::max_value()
40	0	}
41		}
42
43		macro_rules! bounded_impl {
44		($t:ty, $min:expr, $max:expr) => {
45		impl Bounded for $t {
46		#[inline]
47	0	fn min_value() -> $t {
48	0	$min
49	0	} 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
50
51		#[inline]
52	0	fn max_value() -> $t {
53	0	$max
54	0	} 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
55		}
56		};
57		}
58
59		bounded_impl!(usize, usize::MIN, usize::MAX);
60		bounded_impl!(u8, u8::MIN, u8::MAX);
61		bounded_impl!(u16, u16::MIN, u16::MAX);
62		bounded_impl!(u32, u32::MIN, u32::MAX);
63		bounded_impl!(u64, u64::MIN, u64::MAX);
64		#[cfg(has_i128)]
65		bounded_impl!(u128, u128::MIN, u128::MAX);
66
67		bounded_impl!(isize, isize::MIN, isize::MAX);
68		bounded_impl!(i8, i8::MIN, i8::MAX);
69		bounded_impl!(i16, i16::MIN, i16::MAX);
70		bounded_impl!(i32, i32::MIN, i32::MAX);
71		bounded_impl!(i64, i64::MIN, i64::MAX);
72		#[cfg(has_i128)]
73		bounded_impl!(i128, i128::MIN, i128::MAX);
74
75		impl<T: Bounded> Bounded for Wrapping<T> {
76	0	fn min_value() -> Self {
77	0	Wrapping(T::min_value())
78	0	}
79	0	fn max_value() -> Self {
80	0	Wrapping(T::max_value())
81	0	}
82		}
83
84		bounded_impl!(f32, f32::MIN, f32::MAX);
85
86		macro_rules! for_each_tuple_ {
87		( $m:ident !! ) => (
88		$m! { }
89		);
90		( $m:ident !! $h:ident, $($t:ident,)* ) => (
91		$m! { $h $($t)* }
92		for_each_tuple_! { $m !! $($t,)* }
93		);
94		}
95		macro_rules! for_each_tuple {
96		($m:ident) => {
97		for_each_tuple_! { $m !! A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, }
98		};
99		}
100
101		macro_rules! bounded_tuple {
102		( $($name:ident)* ) => (
103		impl<$($name: Bounded,)> Bounded for ($($name,)) {
104		#[inline]
105	0	fn min_value() -> Self {
106	0	($($name::min_value(),)*)
107	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
108		#[inline]
109	0	fn max_value() -> Self {
110	0	($($name::max_value(),)*)
111	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
112		}
113		);
114		}
115
116		for_each_tuple!(bounded_tuple);
117		bounded_impl!(f64, f64::MIN, f64::MAX);
118
119		#[test]
120		fn wrapping_bounded() {
121		macro_rules! test_wrapping_bounded {
122		($($t:ty)+) => {
123		$(
124		assert_eq!(<Wrapping<$t> as Bounded>::min_value().0, <$t>::min_value());
125		assert_eq!(<Wrapping<$t> as Bounded>::max_value().0, <$t>::max_value());
126		)+
127		};
128		}
129
130		test_wrapping_bounded!(usize u8 u16 u32 u64 isize i8 i16 i32 i64);
131		}
132
133		#[cfg(has_i128)]
134		#[test]
135		fn wrapping_bounded_i128() {
136		macro_rules! test_wrapping_bounded {
137		($($t:ty)+) => {
138		$(
139		assert_eq!(<Wrapping<$t> as Bounded>::min_value().0, <$t>::min_value());
140		assert_eq!(<Wrapping<$t> as Bounded>::max_value().0, <$t>::max_value());
141		)+
142		};
143		}
144
145		test_wrapping_bounded!(u128 i128);
146		}
147
148		#[test]
149		fn wrapping_is_bounded() {
150		fn require_bounded<T: Bounded>(_: &T) {}
151		require_bounded(&Wrapping(42_u32));
152		require_bounded(&Wrapping(-42));
153		}

Coverage Report

Created: 2024-09-08 06:35