allwpilib/ntcore/src/main/native/cpp/SequenceNumber.cpp

/*----------------------------------------------------------------------------*/
/* Copyright (c) 2015-2018 FIRST. All Rights Reserved.                        */
/* Open Source Software - may be modified and shared by FRC teams. The code   */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project.                                                               */
/*----------------------------------------------------------------------------*/

#include "SequenceNumber.h"

namespace nt {

bool operator<(const SequenceNumber& lhs, const SequenceNumber& rhs) {
  if (lhs.m_value < rhs.m_value)
    return (rhs.m_value - lhs.m_value) < (1u << 15);
  else if (lhs.m_value > rhs.m_value)
    return (lhs.m_value - rhs.m_value) > (1u << 15);
  else
    return false;
}

bool operator>(const SequenceNumber& lhs, const SequenceNumber& rhs) {
  if (lhs.m_value < rhs.m_value)
    return (rhs.m_value - lhs.m_value) > (1u << 15);
  else if (lhs.m_value > rhs.m_value)
    return (lhs.m_value - rhs.m_value) < (1u << 15);
  else
    return false;
}

}  // namespace nt