Fix the windows CI: (float_of_string "nan") fails on Windows
Fix the windows CI: (float_of_string "nan") fails on Windows

(Report by Alain Frisch)

msprotz/ocaml,yunxing/ocaml,eliberis/ocaml,eliberis/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,yunxing/ocaml,msprotz/ocaml,eliberis/ocaml,gerdstolpmann/ocaml,eliberis/ocaml,eliberis/ocaml,msprotz/ocaml,yunxing/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,yunxing/ocaml