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(* varargs.def provides a basic vararg facility for GNU Modula-2.
Copyright (C) 2015-2025 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius@glam.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. *)
DEFINITION MODULE varargs ;
FROM SYSTEM IMPORT BYTE ;
TYPE
vararg ;
(*
nargs - returns the number of arguments wrapped in, v.
*)
PROCEDURE nargs (v: vararg) : CARDINAL ;
(*
arg - fills in, a, with the next argument. The size of, a, must
be an exact match with the original vararg parameter.
*)
PROCEDURE arg (v: vararg; VAR a: ARRAY OF BYTE) ;
(*
next - assigns the next arg to be collected as, i.
*)
PROCEDURE next (v: vararg; i: CARDINAL) ;
(*
copy - returns a copy of, v.
*)
PROCEDURE copy (v: vararg) : vararg ;
(*
replace - fills the next argument with, a. The size of, a,
must be an exact match with the original vararg
parameter.
*)
PROCEDURE replace (v: vararg; VAR a: ARRAY OF BYTE) ;
(*
end - destructor for vararg, v.
*)
PROCEDURE end (VAR v: vararg) ;
(*
start1 - wraps up argument, a, into a vararg.
*)
PROCEDURE start1 (a: ARRAY OF BYTE) : vararg ;
(*
start2 - wraps up arguments, a, b, into a vararg.
*)
PROCEDURE start2 (a, b: ARRAY OF BYTE) : vararg ;
(*
start3 - wraps up arguments, a, b, c, into a vararg.
*)
PROCEDURE start3 (a, b, c: ARRAY OF BYTE) : vararg ;
(*
start4 - wraps up arguments, a, b, c, d, into a vararg.
*)
PROCEDURE start4 (a, b, c, d: ARRAY OF BYTE) : vararg ;
END varargs.
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