heat

Coding in a train is usually a thing for itself but during winter time it is much harder because your fingers are cold and rigid. Once it got really cold and I needed a method to heat my fingers up. How to programmatically heat fingers? The good thing was, that I had an old IBM Thinkpad with a hot air exhaust, which can be activated. The magic trick to activate the fan is to give the CPU an endless busy waiting task, such that I awkwardly typed with my frozen fingers a piece of heating code, which is not more than a parallel endless loop iterating over an integer.

#include "omp.h"
int main (int argc, char *argv[]) {
  int i;
  #pragma omp parallel
  {
    while (1) {
      i++;
    }
  }
  return 0;
}

This piece of code is unusual and falls pretty well into the definition of a Chindogu, which is a japanese art form. It is unusual because the program does not have a digital output.

If your fingers are feeling cold, feel free to download the source code from GitHub: