#include <ctime>

extern "C" {
float second_();
double dsecnd_();
}

// Elapsed CPU Time in seconds.
float second_(float* x, float* y) {
  return static_cast<float>(std::clock()) / static_cast<float>(CLOCKS_PER_SEC);
}

double dsecnd_(double* x, double* y) {
  return static_cast<double>(std::clock()) /
         static_cast<double>(CLOCKS_PER_SEC);
}