Epsilon.h

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// Copyright (C) 2020 ASTRON (Netherlands Institute for Radio Astronomy)
// SPDX-License-Identifier: GPL-3.0-or-later
 
 
#ifndef COMMON_EPSILON_H
#define COMMON_EPSILON_H
 
#include <cmath>
 
namespace dp3 {
namespace common {
 
template <class T>
bool EpsilonEqual(const std::vector<T>& left, const std::vector<T>& right,
                  const T& epsilon) {
  if (left.size() != right.size()) {
    return false;
  }
 
  for (auto left_it = left.begin(), right_it = right.begin();
       left_it != left.end(); ++left_it, ++right_it) {
    if (std::abs(*left_it - *right_it) > epsilon) {
      return false;
    }
  }
 
  return true;
}
 
}  // namespace common
}  // namespace dp3
 
#endif