Given

RCS file: /pike/data/cvsroot/Pike/7.8/src/modules/files/file_functions.h,v retrieving revision 1.47 diff -r1.47 file_functions.h 124c124 < FILE_FUNC("`<<",file_lsh, tFunc(tMixed,FILE_OBJ)) ---

FILE_FUNC("`<<",file_lsh, tAttr("deprecated", tFunc(tMixed,FILE_OBJ)))

I get

Pike v7.8 release 349 running Hilfe v3.5 (Incremental Pike Frontend)

Stdio.File f = Stdio.File("zork","cwt"); f<<"hej";

(1) Result: Fd(10)

f->`<<("hopp");

Compiler Warning: 1: Calling a deprecated value. Compiler Warning: 1: Using deprecated object(implements _static_modules.files()->Fd_ref) value. (2) Result: Fd(10)

Would it be hard to improve?