PR#2352

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@6200 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

byterun/sys.c

@@ -179,7 +179,7 @@ CAMLprim value caml_sys_remove(value name)
 CAMLprim value caml_sys_rename(value oldname, value newname)
 {
   if (rename(String_val(oldname), String_val(newname)) != 0)
-    caml_sys_error(oldname);
+    caml_sys_error("Sys.rename");
   return Val_unit;
 }
 

stdlib/sys.mli

@@ -32,7 +32,9 @@ external remove : string -> unit = "caml_sys_remove"
 
 external rename : string -> string -> unit = "caml_sys_rename"
 (** Rename a file. The first argument is the old name and the
-   second is the new name. *)
+   second is the new name. If there is already another file
+   under the new name, [rename] may replace it, or raise an
+   exception, depending on your operating system. *)
 
 external getenv : string -> string = "caml_sys_getenv"
 (** Return the value associated to a variable in the process