mop-facades 0.0.6

Facades for MOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35

use crate::{initial_solutions::InitialSolutions, opt_problem::*};
use core::default::Default;
use mop_blocks::prelude::Domain;
use mop_common::rand::{distributions::uniform::SampleUniform, rngs::OsRng};

#[derive(Clone, Debug, Default)]
pub struct RandomInitialSolutions {}

impl RandomInitialSolutions {
    pub fn new() -> Self {
        RandomInitialSolutions {}
    }
}

impl<C, D, O, OR, S> InitialSolutions<OptProblem<C, D, O, OR, S>> for RandomInitialSolutions
where
    D: Domain<S>,
    OR: Default + SampleUniform,
    S: Solution,
{
    fn initial_solutions(&mut self, op: &mut OptProblem<C, D, O, OR, S>) {
        let (defs, results) = op.parts_mut();
        let mut rng = OsRng::new().unwrap();
        for _ in 0..defs.results_num() {
            let mut c = results.constructor();
            c = (0..defs.hard_cstrs().len()).fold(c, |c, _| c.push_hard_cstr(usize::default()));
            c = (0..defs.objs().len()).fold(c, |c, _| c.push_obj(OR::default()));
            let domain = defs.domain();
            c.commit(
                OR::default(),
                domain.new_rnd_solution(defs.vars_num().clone(), &mut rng),
            );
        }
    }
}