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guile/libguile/pairs.h
Jim Blandy 1cc91f1b29 * __scm.h, alist.c, alist.h, append.c, append.h, appinit.c, 
arbiters.c, arbiters.h, async.c, async.h, boolean.c, boolean.h,
chars.c, chars.h, continuations.c, continuations.h, debug.c,
debug.h, dynwind.c, dynwind.h, eq.c, eq.h, error.c, eval.c,
eval.h, extchrs.c, extchrs.h, fdsocket.c, fdsocket.h, filesys.c,
filesys.h, fports.c, fports.h, gc.c, gdb_interface.h, gdbint.c,
gdbint.h, genio.c, genio.h, gscm.c, gscm.h, gsubr.c, gsubr.h,
hash.c, hash.h, hashtab.c, hashtab.h, init.c, ioext.c, ioext.h,
kw.c, kw.h, libguile.h, mallocs.c, mallocs.h, markers.c,
markers.h, mbstrings.c, mbstrings.h, numbers.c, numbers.h,
objprop.c, objprop.h, options.c, options.h, pairs.c, pairs.h,
ports.c, ports.h, posix.c, posix.h, print.c, print.h, procprop.c,
procprop.h, procs.c, procs.h, ramap.c, ramap.h, read.c, read.h,
root.c, scmsigs.c, scmsigs.h, sequences.c, sequences.h, simpos.c,
simpos.h, smob.c, socket.c, socket.h, srcprop.c, srcprop.h,
stackchk.c, stackchk.h, stime.c, stime.h, strings.c, strings.h,
strop.c, strop.h, strorder.c, strorder.h, strports.c, strports.h,
struct.c, struct.h, symbols.c, symbols.h, tag.c, tag.h, unif.c,
unif.h, variable.c, variable.h, vectors.c, vectors.h, version.c,
version.h, vports.c, vports.h, weaks.c, weaks.h: Use SCM_P to
declare functions with prototypes.  (Patch thanks to Marius
Vollmer.)
1996-10-14 01:33:50 +00:00

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/* classes: h_files */
#ifndef PAIRSH
#define PAIRSH
/* Copyright (C) 1995,1996 Free Software Foundation, Inc.
*
* This program 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.
*
* This program 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 this software; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice.
*/
#include "libguile/__scm.h"
typedef struct scm_cell
{
SCM car;
SCM cdr;
} scm_cell;
/* SCM_PTR_LT defines how to compare two SCM_CELLPTRs (which may not be in the
* same scm_array). SCM_CELLPTR is a pointer to a cons cell which may be
* compared or differenced. SCMPTR is used for stack bounds.
*/
#if !defined(__TURBOC__) || defined(__TOS__)
typedef scm_cell *SCM_CELLPTR;
typedef SCM *SCMPTR;
# ifdef nosve
# define SCM_PTR_MASK 0xffffffffffff
# define SCM_PTR_LT(x, y) (((int)(x)&SCM_PTR_MASK) < ((int)(y)&SCM_PTR_MASK))
# else
# define SCM_PTR_LT(x, y) ((x) < (y))
# endif /* def nosve */
#else /* defined(__TURBOC__) && !defined(__TOS__) */
# ifdef PROT386
typedef scm_cell *SCM_CELLPTR;
typedef SCM *SCMPTR;
# define SCM_PTR_LT(x, y) (((long)(x)) < ((long)(y)))
# else
typedef scm_cell huge *SCM_CELLPTR;
typedef SCM huge *SCMPTR;
# define SCM_PTR_LT(x, y) ((x) < (y))
# endif /* def PROT386 */
#endif /* defined(__TURBOC__) && !defined(__TOS__) */
#define SCM_PTR_GT(x, y) SCM_PTR_LT(y, x)
#define SCM_PTR_LE(x, y) (!SCM_PTR_GT(x, y))
#define SCM_PTR_GE(x, y) (!SCM_PTR_LT(x, y))
#define SCM_NULLP(x) (SCM_EOL == (x))
#define SCM_NNULLP(x) (SCM_EOL != (x))
/* Cons Pairs
*/
#define SCM_CAR(x) (((scm_cell *)(SCM2PTR(x)))->car)
#define SCM_CDR(x) (((scm_cell *)(SCM2PTR(x)))->cdr)
#define SCM_GCCDR(x) (~1L & SCM_CDR(x))
#define SCM_SETCDR(x, v) SCM_CDR(x) = (SCM)(v)
#define SCM_SETCAR(x, v) SCM_CAR(x) = (SCM)(v)
#define SCM_CAAR(OBJ) SCM_CAR (SCM_CAR (OBJ))
#define SCM_CDAR(OBJ) SCM_CDR (SCM_CAR (OBJ))
#define SCM_CADR(OBJ) SCM_CAR (SCM_CDR (OBJ))
#define SCM_CDDR(OBJ) SCM_CDR (SCM_CDR (OBJ))
#define SCM_CAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (OBJ)))
#define SCM_CDAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (OBJ)))
#define SCM_CADAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (OBJ)))
#define SCM_CDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (OBJ)))
#define SCM_CAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (OBJ)))
#define SCM_CDADR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (OBJ)))
#define SCM_CADDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (OBJ)))
#define SCM_CDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (OBJ)))
#define SCM_CAAAAR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ))))
#define SCM_CDAAAR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CAR (OBJ))))
#define SCM_CADAAR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ))))
#define SCM_CDDAAR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CAR (OBJ))))
#define SCM_CAADAR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ))))
#define SCM_CDADAR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CAR (OBJ))))
#define SCM_CADDAR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ))))
#define SCM_CDDDAR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CAR (OBJ))))
#define SCM_CAAADR(OBJ) SCM_CAR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ))))
#define SCM_CDAADR(OBJ) SCM_CDR (SCM_CAR (SCM_CAR (SCM_CDR (OBJ))))
#define SCM_CADADR(OBJ) SCM_CAR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ))))
#define SCM_CDDADR(OBJ) SCM_CDR (SCM_CDR (SCM_CAR (SCM_CDR (OBJ))))
#define SCM_CAADDR(OBJ) SCM_CAR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ))))
#define SCM_CDADDR(OBJ) SCM_CDR (SCM_CAR (SCM_CDR (SCM_CDR (OBJ))))
#define SCM_CADDDR(OBJ) SCM_CAR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ))))
#define SCM_CDDDDR(OBJ) SCM_CDR (SCM_CDR (SCM_CDR (SCM_CDR (OBJ))))
#define SCM_NEWCELL(_into) \
{ \
if (SCM_IMP(scm_freelist)) \
_into = scm_gc_for_newcell();\
else \
{ \
_into = scm_freelist; \
scm_freelist = SCM_CDR(scm_freelist);\
++scm_cells_allocated; \
} \
}
extern SCM scm_cons SCM_P ((SCM x, SCM y));
extern SCM scm_cons2 SCM_P ((SCM w, SCM x, SCM y));
extern SCM scm_pair_p SCM_P ((SCM x));
extern SCM scm_set_car_x SCM_P ((SCM pair, SCM value));
extern SCM scm_set_cdr_x SCM_P ((SCM pair, SCM value));
extern void scm_init_pairs SCM_P ((void));
#endif /* PAIRSH */
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