L1AlgoFunctions.h

Go to the documentation of this file.

/* Copyright (C) 2016-2022 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
   SPDX-License-Identifier: GPL-3.0-only
   Authors: Sergey Gorbunov, Sergei Zharko [committer] */
 
/************************************************************************************************************
 * @file  L1AlgoFunctions.h
 * @brief File contains some general purpose functions
 * @since 12.01.2022
 ***********************************************************************************************************/
 
#include <iomanip>
#include <map>
#include <sstream>
#include <string>
#include <unordered_map>
 
template<class Key, class T, class Hash = std::hash<Key>>
void SetSingleValueToMap(Key key, T value, std::unordered_map<Key, T, Hash>& aMap)
{
  aMap[key] = value;
}
 
template<class Key, class T, class Hash = std::hash<Key>>
void SetSameValueToMap(T value, std::unordered_map<Key, T, Hash>& aMap)
{
  for (auto it = aMap.begin(); it != aMap.end(); ++it) {
    it->second = value;
  }
}
 
template<class Key, class T, class Hash = std::hash<Key>>
void SetMappedValuesToMap(const std::unordered_map<Key, T, Hash>& inMap, std::unordered_map<Key, T, Hash>& aMap)
{
  for (auto it = aMap.begin(); it != aMap.end(); ++it) {
    if (inMap.find(it->first) != inMap.end()) {
      it->second = inMap.at(it->first);
    }
  }
}
 
template<class Key, class T, class Hash = std::hash<Key>>
std::string RepresentMapWithString(const std::unordered_map<Key, T, Hash>& aMap, int entryWidth = 15)
{
  std::stringstream token;
  for (auto it = aMap.begin(); it != aMap.end(); ++it) {
    token << std::setw(entryWidth) << std::setfill(' ') << it->second << ' ';
  }
  return token.str();
}