X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=src%2FstateSet.ml;h=2a9e2836172a9cb01edcec6b647a6ef6cdee76a3;hb=refs%2Fheads%2Flucca-optim;hp=47ad460d7642df507300b26cb523a52683a1483b;hpb=cba2938d929fd5119b1491686ddc224d5af618c6;p=tatoo.git

diff --git a/src/stateSet.ml b/src/stateSet.ml
index 47ad460..2a9e283 100644
--- a/src/stateSet.ml
+++ b/src/stateSet.ml
@@ -18,5 +18,10 @@ open Format
 include Ptset.Make (Hcons.PosInt)
 
 let print ppf s =
-  fprintf ppf "{ %a }"
-    (Pretty.print_list ~sep:" " (State.print)) (elements s)
+  if is_empty s
+  then fprintf ppf "ø"
+  else
+    let p_set ppf s =
+      (Pretty.print_list ~sep:"," (State.print)) ppf (elements s) in
+    fprintf ppf "{%a}" p_set s
+