X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FDEVEL%2Flablgtk%2Flablgtk_20001129-0.1.0%2Fgpointer.ml;fp=helm%2FDEVEL%2Flablgtk%2Flablgtk_20001129-0.1.0%2Fgpointer.ml;h=0000000000000000000000000000000000000000;hb=e108abe5c0b4eb841c4ad332229a6c0e57e70079;hp=7d28a1f9d8a00ebf8a30d39fa8786809633db0c6;hpb=1456c337a60f6677ee742ff7891d43fc382359a9;p=helm.git diff --git a/helm/DEVEL/lablgtk/lablgtk_20001129-0.1.0/gpointer.ml b/helm/DEVEL/lablgtk/lablgtk_20001129-0.1.0/gpointer.ml deleted file mode 100644 index 7d28a1f9d..000000000 --- a/helm/DEVEL/lablgtk/lablgtk_20001129-0.1.0/gpointer.ml +++ /dev/null @@ -1,41 +0,0 @@ -(* $Id$ *) - -(* marked pointers *) -type 'a optaddr - -let optaddr : 'a option -> 'a optaddr = - function - None -> Obj.magic 0 - | Some x -> Obj.magic x - -(* naked pointers *) -type optstring - -external get_null : unit -> optstring = "ml_get_null" -let raw_null = get_null () - -let optstring : string option -> optstring = - function - None -> raw_null - | Some x -> Obj.magic x - -(* boxed pointers *) -type boxed -let boxed_null : boxed = Obj.magic (0, raw_null) - -type 'a optboxed - -let optboxed : 'a option -> 'a optboxed = - function - None -> Obj.magic boxed_null - | Some obj -> Obj.magic obj - -let may_box ~f obj : 'a optboxed = - match obj with - None -> Obj.magic boxed_null - | Some obj -> Obj.magic (f obj : 'a) - -(* Exceptions *) - -exception Null -let _ = Callback.register_exception "null_pointer" Null