4 ms·

It's literally in the description? Because of aliasing, a variable that should've been zero became four.

• pklausler 10mo ago
  It wasn't a variable.
  • Etheryte 10mo ago
    It wasn't intended to be a variable, but it did become one. Its value varied, it's in the name.
    • pklausler 10mo ago
      But this is just Fortran's call-by-reference in action. It's not aliasing.