X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fsoftware%2Flambda-delta%2Fsrc%2Fcommon%2Fccs.ml;fp=helm%2Fsoftware%2Flambda-delta%2Fsrc%2Fcommon%2Fccs.ml;h=db8a7786575ce3dca266a41c32fcbc9ded12ca51;hb=cee0c3ca597ebbff2250674c255ed1bc909521fb;hp=ca27ff93dce677b67dffedcde1576f6e40f2c421;hpb=30bbfa78612ca1ad0c131a75d7075cfd35bebbe1;p=helm.git

diff --git a/helm/software/lambda-delta/src/common/ccs.ml b/helm/software/lambda-delta/src/common/ccs.ml
index ca27ff93d..db8a77865 100644
--- a/helm/software/lambda-delta/src/common/ccs.ml
+++ b/helm/software/lambda-delta/src/common/ccs.ml
@@ -17,7 +17,9 @@ module G = Options
 
 type csys = {
            uri: E.uri;
-   mutable is : int list
+   mutable tp : int list;
+   mutable t1 : int list;
+   mutable tn : (int * int) list;
 }
 
 let mark a = E.mark C.err C.start a
@@ -26,11 +28,23 @@ let mark a = E.mark C.err C.start a
 
 let init () = {
    uri = U.uri_of_string (G.get_baseuri ());
-   is = [];
+   tp = []; t1 = []; tn = []
 }
 
-let add_infinite s a = 
+let add_nonzero s a = 
    if !G.si && !G.cc then
       let i = abs (mark a) in
-      if L.mem i s.is then () else s.is <- i :: s.is
+      if L.mem i s.tp then () else s.tp <- i :: s.tp
+   else ()
+
+let add_zero s a = 
+   if !G.si && !G.cc then
+      let i = abs (mark a) in
+      if L.mem i s.t1 then () else s.t1 <- i :: s.t1
+   else ()
+
+let add_equal s xa ia = 
+   if !G.si && !G.cc then
+      let i = abs (mark xa), abs (mark ia) in
+      if L.mem i s.tn then () else s.tn <- i :: s.tn
    else ()