// #ifndef BTCSUTILS_H_
// #define BTCSUTILS_H_

// #include <chrono>
// #include <stdexcept>
// #include <string>

// #define throw_invalid_argument(msg)                                            \
//   throw std::invalid_argument(std::string(__FILE__) + ":" +                    \
//                               std::to_string(__LINE__) + ":" +                 \
//                               std::string(msg))

// #define throw_out_of_range(msg)                                                \
//   throw std::out_of_range(std::string(__FILE__) + ":" +                        \
//                           std::to_string(__LINE__) + ":" + std::string(msg))

// #define time_marker() std::chrono::high_resolution_clock::now()

// #define diff_time(start, end)                                                  \
//   ({                                                                           \
//     std::chrono::duration<double> duration =                                   \
//         std::chrono::duration_cast<std::chrono::duration<double>>(end -        \
//                                                                   start);      \
//     duration.count();                                                          \
//   })
// #endif // BTCSUTILS_H_

// // calculates arithmetic or harmonic mean of alpha between two cells
// static double calcAlphaIntercell(double &alpha1, double &alpha2, bool useHarmonic = true) {
//     if (useHarmonic) {
//         return double(2) / ((double(1)/alpha1) + (double(1)/alpha2));
//     } else {
//         return 0.5 * (alpha1 + alpha2);
//     }
// }