On: Why F#?

[RUnconcerned]

could also be "4" or 4! 4 seems like it would be the most evil option, honestly

[pjc50 → RUnconcerned]

The real evil option is C: 2+"22" = 0, 4+"4" = undefined behavior and probably the value of some other variable.

[sehansen → pjc50]

The real horror is "1d9" + 1 = 2, as does PHP: https://3v4l.org/Dn6Sm

[manwe150 → pjc50]

I think you meant: "22"+2 = "", and it is not UB to make the second pointer, only to use it

[hoseja → manwe150]

The pointer arithmetic works both ways, same as square brackets.

[baq → RUnconcerned]

or the most sane, depending on context... e.g. awk and perl do this.