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pub trait Zeroable {
/// Checks if a number is zero.
/// ```
/// use traiter::numbers::Zeroable;
/// /// floating point numbers
/// assert!(!Zeroable::is_zero(-1.0_f32));
/// assert!(Zeroable::is_zero(0.0_f32));
/// assert!(!Zeroable::is_zero(1.0_f32));
/// /// signed integers
/// assert!(!Zeroable::is_zero(-1i8));
/// assert!(Zeroable::is_zero(0i8));
/// assert!(!Zeroable::is_zero(1i8));
/// /// unsigned integers
/// assert!(Zeroable::is_zero(0u8));
/// assert!(!Zeroable::is_zero(1u8));
/// assert!(!Zeroable::is_zero(2u8));
/// ```
fn is_zero(self) -> bool;
}
macro_rules! number_zeroable_impl {
($($number:ty)*) => ($(
impl Zeroable for $number {
#[inline(always)]
fn is_zero(self) -> bool {
self == (0 as $number)
}
}
impl Zeroable for &$number {
#[inline(always)]
fn is_zero(self) -> bool {
*self == (0 as $number)
}
}
)*)
}
number_zeroable_impl!(
f32 f64 i8 i16 i32 i64 i128 isize u8 u16 u32 u64 u128 usize
);