// OpenSTA, Static Timing Analyzer
// Copyright (c) 2019, Parallax Software, Inc.
// 
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

#ifndef STA_PIN_PAIR_H
#define STA_PIN_PAIR_H

#include "Hash.hh"
#include "Set.hh"
#include "NetworkClass.hh"

namespace sta {

typedef std::pair<Pin*, Pin*> PinPair;

class PinPairLess
{
public:
  bool operator()(const PinPair *pair1,
		  const PinPair *pair2) const;
};

typedef Set<PinPair*, PinPairLess> PinPairSet;

class PinPairHash
{
public:
  size_t operator()(const PinPair *pair) const;
};

class PinPairEqual
{
public:
  bool operator()(const PinPair *pair1,
		  const PinPair *pair2) const;
};

} // namespace
#endif
