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/********************* */
/*! \file chain.h
** \verbatim
** Top contributors (to current version):
** Morgan Deters
** This file is part of the CVC4 project.
** Copyright (c) 2009-2018 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.\endverbatim
**
** \brief [[ Add one-line brief description here ]]
**
** [[ Add lengthier description here ]]
** \todo document this file
**/
#include "cvc4_public.h"
#ifndef __CVC4__CHAIN_H
#define __CVC4__CHAIN_H
#include "expr/kind.h"
#include <iostream>
namespace CVC4 {
/** A class to represent a chained, built-in operator. */
class CVC4_PUBLIC Chain {
Kind d_kind;
public:
explicit Chain(Kind k) : d_kind(k) { }
bool operator==(const Chain& ch) const { return d_kind == ch.d_kind; }
bool operator!=(const Chain& ch) const { return d_kind != ch.d_kind; }
Kind getOperator() const { return d_kind; }
};/* class Chain */
inline std::ostream& operator<<(std::ostream& out, const Chain& ch) CVC4_PUBLIC;
inline std::ostream& operator<<(std::ostream& out, const Chain& ch) {
return out << ch.getOperator();
}
struct CVC4_PUBLIC ChainHashFunction {
size_t operator()(const Chain& ch) const {
return kind::KindHashFunction()(ch.getOperator());
}
};/* struct ChainHashFunction */
}/* CVC4 namespace */
#endif /* __CVC4__CHAIN_H */
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