Fix various small issues with the multiple-value implementation. lisp/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * byte-optimize.el (byte-optimize-form-code-walker): Be careful about discarding multiple values when optimising #'prog1 calls. (byte-optimize-or): Preserve any trailing nil, as this is a supported way to explicitly discard multiple values. (byte-optimize-cond-1): Discard multiple values with a singleton followed by no more clauses. * bytecomp.el (progn): (prog1): (prog2): Be careful about discarding multiple values in the byte-hunk handler of these three forms. * bytecomp.el (byte-compile-prog1, byte-compile-prog2): Don't call #'values explicitly, use `(or ,(pop form) nil) instead, since that compiles to bytecode, not a funcall. * bytecomp.el (byte-compile-values): With one non-const argument, byte-compile to `(or ,(second form) nil), not an explicit #'values call. * bytecomp.el (byte-compile-insert-header): Be nicer in the error message to emacs versions that don't understand our bytecode. src/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * eval.c (For, Fand): Don't declare val as REGISTER in these functions, for some reason it breaks the non-DEBUG union build. These functions are only called from interpreted code, the performance implication doesn't matter. Thank you Robert Delius Royar! * eval.c (Fmultiple_value_list_internal): Error on too many arguments. tests/ChangeLog addition: 2009-08-31 Aidan Kehoe <kehoea@parhasard.net> * automated/lisp-tests.el (Assert-rounding): Remove an overly-verbose failure message here. Correct a couple of tests which were buggy in themselves. Add three new tests, checking the behaviour of #'or and #'and when passed zero arguments, and a Known-Bug-Expect-Failure call involving letf and values. (The bug predates the C-level multiple-value implementation.)

/* Commonly-used symbols
   Copyright (C) 1995 Sun Microsystems.
   Copyright (C) 1995, 1996, 2000 Ben Wing.

This file is part of XEmacs.

XEmacs 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 2, or (at your option) any
later version.

XEmacs 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 XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

/* See general-slots.h.
*/

#include <config.h>
#include "lisp.h"

#define SYMBOL(fou) Lisp_Object fou
#define SYMBOL_MODULE_API(fou) Lisp_Object fou
#define SYMBOL_KEYWORD(la_cle_est_fou) Lisp_Object la_cle_est_fou
#define SYMBOL_GENERAL(tout_le_monde, est_fou) Lisp_Object tout_le_monde

#include "general-slots.h"

#undef SYMBOL
#undef SYMBOL_MODULE_API
#undef SYMBOL_KEYWORD
#undef SYMBOL_GENERAL

void
syms_of_general (void)
{
#define SYMBOL(loco) DEFSYMBOL (loco)
#define SYMBOL_MODULE_API(loco) DEFSYMBOL (loco)
#define SYMBOL_KEYWORD(meshugeneh) DEFKEYWORD (meshugeneh)
#define SYMBOL_GENERAL(vachement, fou) defsymbol (&vachement, fou)

#include "general-slots.h"

#undef SYMBOL
#undef SYMBOL_KEYWORD
#undef SYMBOL_GENERAL
}