rustsat-cadical 0.7.5

Interface to the SAT solver CaDiCaL for the RustSAT library.
Documentation 
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

#ifndef _level_hpp_INCLUDED
#define _level_hpp_INCLUDED

#include <climits>

namespace CaDiCaL {

// For each new decision we increase the decision level and push a 'Level'
// on the 'control' stack.  The information gathered here is used in
// 'reuse_trail' and for early aborts in clause minimization.

struct Level {

  int decision; // decision literal of this level
  int trail;    // trail start of this level

  struct {
    int count; // how many variables seen during 'analyze'
    int trail; // smallest trail position seen on this level
  } seen;

  void reset () {
    seen.count = 0;
    seen.trail = INT_MAX;
  }

  Level (int d, int t) : decision (d), trail (t) { reset (); }
  Level () {}
};

} // namespace CaDiCaL

#endif