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use core::{BoundedSpace, Space, Card};
use discrete::Naturals;
use std::fmt;
#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
pub struct Integers;
impl Space for Integers {
type Value = i64;
fn dim(&self) -> usize { 1 }
fn card(&self) -> Card { Card::Infinite }
}
impl BoundedSpace for Integers {
type BoundValue = Self::Value;
fn inf(&self) -> Option<i64> { None }
fn sup(&self) -> Option<i64> { None }
fn contains(&self, _: Self::BoundValue) -> bool { true }
}
impl fmt::Display for Integers {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "\u{2124}")
}
}
#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
pub struct NonZeroIntegers;
impl Space for NonZeroIntegers {
type Value = i64;
fn dim(&self) -> usize { 1 }
fn card(&self) -> Card { Card::Infinite }
}
impl BoundedSpace for NonZeroIntegers {
type BoundValue = Self::Value;
fn inf(&self) -> Option<i64> { None }
fn sup(&self) -> Option<i64> { None }
fn contains(&self, val: Self::BoundValue) -> bool { val != 0 }
}
impl fmt::Display for NonZeroIntegers {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "\u{2124}(>0)")
}
}
#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
pub struct NonNegativeIntegers;
impl Space for NonNegativeIntegers {
type Value = u64;
fn dim(&self) -> usize { 1 }
fn card(&self) -> Card { Card::Infinite }
}
impl BoundedSpace for NonNegativeIntegers {
type BoundValue = Self::Value;
fn inf(&self) -> Option<u64> { Some(0) }
fn sup(&self) -> Option<u64> { None }
fn contains(&self, _: Self::BoundValue) -> bool { true }
}
impl fmt::Display for NonNegativeIntegers {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "\u{2124}(≥0)")
}
}
pub type PositiveIntegers = Naturals;