• See SEI CERT C Coding Standard

• Remove unused parameters from internal functions

  • drill_add_drill_hole()
  • new_state()

• Use consistent order for similar function parameters

  • Reduces mental load
  • Avoids stack reshuffling
  • Easier debugging (stack in same order...)

• Use descriptive variable names

• Reduce cyclomatic complexity of large functions

These are all at least partially addressed by #210