1 files changed, 38 insertions, 0 deletions
diff --git a/src/date.mli b/src/date.mli
new file mode 100755
index 0000000..dd24124
--- /dev/null
+++ b/src/date.mli
@@ -0,0 +1,38 @@
+module type CALCULABLE = sig
+
+  type t
+
+  val add: t -> t -> t
+
+  val sub: t -> t -> t
+
+  val mult: t -> t -> t
+
+  val div: t -> t -> t
+
+  val floor: t -> t
+
+  val of_int: int -> t
+
+  val to_int: t -> int
+
+  val to_float: t -> float
+
+end
+
+module Make(C:CALCULABLE): sig
+
+  (** Create a date from a year month day *)
+  val get_julian_day : int -> int -> int -> C.t
+  
+  (** Return the year, month and day from a date *)
+  val date_from_julian_day : C.t -> int * int * int
+  
+  val time_from_julian_day : C.t -> int * int * C.t
+
+  val from_string: string -> C.t
+  
+  (** Print out the date *)
+  val to_string: C.t -> string
+
+end