Hello,

The behavior of Printf w.r.t. %F changed recently.

Before (OCaml 3.10.0, and presumably 3.11.0):

# Printf.sprintf "%F" 1.;;
- : string = "1."


Now (OCaml 3.11.1+rc1):

# Printf.sprintf "%F" 1.;;
- : string = "1.000000"


This change comes from:

http://camlcvs.inria.fr/cgi-bin/cvsweb/ocaml/stdlib/printf.ml.diff?r1=1.58.2.1;r2=1.58.2.2;f=h


Is the new behavior intentional? The manual says:

========
F: convert a floating-point argument to Caml syntax (dddd.  or dddd.ddd 
or d.ddd e+-dd).
========

but it seems the new implementation never produces the form dddd.


-- Alain