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.)

/*
  postgresql.h -- Emacs Lisp binding to libpq.so
  Copyright (C) 2000 Electrotechnical Laboratory, JAPAN.
  Licensed to the Free Software Foundation.

  Author:  SL Baur <steve@xemacs.org>
  Maintainer:  SL Baur <steve@xemacs.org>

Please send patches to this file to me first before submitting them to
xemacs-patches.
*/

#ifndef INCLUDED_postgresql_h_
#define INCLUDED_postgresql_h_ 1

#define message message_ /* Yuck */
#include LIBPQ_FE_H_FILE /* main PostgreSQL header file */
#undef message

#define BLCKSZ 8192 /* size of a default Postgres disk block */
/*
  This file contains the GCC bug workaround code for the private
  LRECORD types.
*/

/* PGconn is an opaque object and we need to be able to store them in
   Lisp code because libpq supports multiple connections.
*/
struct Lisp_PGconn
{
  struct LCRECORD_HEADER header;
  PGconn *pgconn;
};
typedef struct Lisp_PGconn Lisp_PGconn;

DECLARE_LRECORD (pgconn, Lisp_PGconn);

#define XPGCONN(x) XRECORD (x, pgconn, Lisp_PGconn)
#define wrap_pgconn(p) wrap_record (p, pgconn)
#define PGCONNP(x) RECORDP (x, pgconn)
#define CHECK_PGCONN(x) CHECK_RECORD (x, pgconn)
#define CONCHECK_PGCONN(x) CONCHECK_RECORD (x, pgconn)

/****/

/* PGresult is an opaque object and we need to be able to store them in
   Lisp code.
*/
struct Lisp_PGresult
{
  struct LCRECORD_HEADER header;
  PGresult *pgresult;
};
typedef struct Lisp_PGresult Lisp_PGresult;

DECLARE_LRECORD (pgresult, Lisp_PGresult);

#define XPGRESULT(x) XRECORD (x, pgresult, Lisp_PGresult)
#define wrap_pgresult(p) wrap_record (p, pgresult)
#define PGRESULTP(x) RECORDP (x, pgresult)
#define CHECK_PGRESULT(x) CHECK_RECORD (x, pgresult)
#define CONCHECK_PGRESULT(x) CONCHECK_RECORD (x, pgresult)

#endif /* INCLUDED_postgresql_h_ */