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/******************************************************************************
* Top contributors (to current version):
* Morgan Deters, Mathias Preiner
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
* in the top-level source directory and their institutional affiliations.
* All rights reserved. See the file COPYING in the top-level source
* directory for licensing information.
* ****************************************************************************
*
* [[ Add one-line brief description here ]]
*
* [[ Add lengthier description here ]]
* \todo document this file
*/
#include "cvc5_public.h"
#ifndef CVC5__DIVISIBLE_H
#define CVC5__DIVISIBLE_H
#include <iosfwd>
#include <ostream>
#include <stddef.h>
#include "util/integer.h"
namespace cvc5 {
/**
* The structure representing the divisibility-by-k predicate.
*/
struct Divisible
{
const Integer k;
Divisible(const Integer& n);
bool operator==(const Divisible& d) const {
return k == d.k;
}
bool operator!=(const Divisible& d) const {
return !(*this == d);
}
}; /* struct Divisible */
/**
* Hash function for the Divisible objects.
*/
struct DivisibleHashFunction
{
size_t operator()(const Divisible& d) const {
return d.k.hash();
}
}; /* struct DivisibleHashFunction */
inline std::ostream& operator<<(std::ostream& os, const Divisible& d);
inline std::ostream& operator <<(std::ostream& os, const Divisible& d) {
return os << "divisible-by-" << d.k;
}
} // namespace cvc5
#endif /* CVC5__DIVISIBLE_H */
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