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use crate::prelude::*;
use std::fmt;
pub type Interval = crate::Interval<f64>;
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
#[cfg_attr(feature = "serialize", derive(Serialize, Deserialize))]
pub struct Reals;
impl Reals {
pub fn bounded(self, lb: f64, ub: f64) -> Interval { Interval::bounded(lb, ub) }
pub fn lower_bounded(self, lb: f64) -> Interval { Interval::lower_bounded(lb) }
pub fn upper_bounded(self, ub: f64) -> Interval { Interval::upper_bounded(ub) }
}
impl Space for Reals {
const DIM: usize = 1;
type Value = f64;
fn card(&self) -> Card { Card::Infinite }
fn contains(&self, _: &f64) -> bool { true }
}
impl OrderedSpace for Reals {}
impl_union_intersect!(Reals, Reals);
impl fmt::Display for Reals {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "\u{211d}") }
}
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
#[cfg_attr(feature = "serialize", derive(Serialize, Deserialize))]
pub struct NonNegativeReals;
impl Space for NonNegativeReals {
const DIM: usize = 1;
type Value = f64;
fn card(&self) -> Card { Card::Infinite }
fn contains(&self, val: &f64) -> bool { *val >= 0.0 }
}
impl OrderedSpace for NonNegativeReals {
fn min(&self) -> Option<f64> { Some(0.0) }
}
impl_union_intersect!(NonNegativeReals, NonNegativeReals);
impl fmt::Display for NonNegativeReals {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "\u{211d}(>0)") }
}
#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
#[cfg_attr(feature = "serialize", derive(Serialize, Deserialize))]
pub struct PositiveReals;
impl Space for PositiveReals {
const DIM: usize = 1;
type Value = f64;
fn card(&self) -> Card { Card::Infinite }
fn contains(&self, val: &f64) -> bool { *val > 0.0 }
}
impl OrderedSpace for PositiveReals {
fn inf(&self) -> Option<f64> { Some(0.0) }
}
impl_union_intersect!(PositiveReals, PositiveReals);
impl fmt::Display for PositiveReals {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { write!(f, "\u{211d}(≥0)") }
}
#[cfg(test)]
mod tests {
use super::*;
#[cfg(feature = "serialize")]
extern crate serde_test;
#[cfg(feature = "serialize")]
use self::serde_test::{assert_tokens, Token};
#[test]
fn test_bounded() {
let d = Reals;
assert_eq!(d.bounded(0.0, 1.0), Interval::bounded(0.0, 1.0));
}
#[test]
fn test_card() {
let d = Reals;
assert_eq!(d.card(), Card::Infinite);
}
#[cfg(feature = "serialize")]
#[test]
fn test_serialisation() {
let d = Reals;
assert_tokens(&d, &[Token::UnitStruct { name: "Reals" }]);
}
}