Hi !

  Aware that this belongs to beginners-list, I first posted there
three weeks ago, but without any answer :

  I bet this kind of code should be rather common :

let string_of_piece_type = function
  King   -> "King"
| Queen  -> "Queen"
| Rook   -> "Rook"
| Bishop -> "Bishop"
| Knight -> "Knight"
| Pawn   -> "Pawn"

 Please have you got an example where the macro helps to implement such kind of "string_of_type" function ?

 Thanks,

Fabrice