qconfig_helpers.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef QCONFIG_HELPERS_H
#define QCONFIG_HELPERS_H
 
#include <string>
#include <sstream>
#include <type_traits>
 
#define qon_mcat(a, b) a##b
#define qon_mxcat(a, b) qon_mcat(a, b)
#define qon_mcat3(a, b, c) a##b##c
#define qon_mxcat3(a, b, c) qon_mcat3(a, b, c)
#define qon_mstr(a) #a
#define qon_mxstr(a) qon_mstr(a)
#define qon_mexp(...) __VA_ARGS__
#define qon_mxexp(X) qon_mexp X
 
namespace qConfig
{
template <class T>
inline std::string print_type(T val, bool precise = false)
{
  std::ostringstream s;
  if constexpr (std::is_same_v<T, float> || std::is_same_v<T, double>) {
    if (precise) {
      s << std::hexfloat;
    }
  }
  s << val;
  return s.str();
};
template <>
inline std::string print_type<char>(char val, bool precise)
{
  return std::to_string(val);
};
template <>
inline std::string print_type<int8_t>(int8_t val, bool precise)
{
  return std::to_string(val);
};
template <>
inline std::string print_type<uint8_t>(uint8_t val, bool precise)
{
  return std::to_string(val);
};
template <>
inline std::string print_type<bool>(bool val, bool precise)
{
  return val ? "true" : "false";
};
} // namespace qConfig
 
#endif