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- /* Copyright (C) 1995 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 <stdio.h>
- #include "_scm.h"
-
- PROC1 (s_eq_p, "eq?", tc7_rpsubr, scm_eq_p);
- #ifdef __STDC__
- SCM
- scm_eq_p (SCM x, SCM y)
- #else
- SCM
- scm_eq_p (x, y)
- SCM x;
- SCM y;
- #endif
- {
- return ((x==y)
- ? BOOL_T
- : BOOL_F);
- }
-
-
- PROC1 (s_eqv_p, "eqv?", tc7_rpsubr, scm_eqv_p);
- #ifdef __STDC__
- SCM
- scm_eqv_p (SCM x, SCM y)
- #else
- SCM
- scm_eqv_p (x, y)
- SCM x;
- SCM y;
- #endif
- {
- if (x==y) return BOOL_T;
- if IMP(x) return BOOL_F;
- if IMP(y) return BOOL_F;
- /* this ensures that types and scm_length are the same. */
- if (CAR(x) != CAR(y)) return BOOL_F;
- if NUMP(x) {
- # ifdef BIGDIG
- if BIGP(x) return (0==scm_bigcomp(x, y)) ? BOOL_T : BOOL_F;
- # endif
- #ifdef FLOATS
- if (REALPART(x) != REALPART(y)) return BOOL_F;
- if (CPLXP(x) && (IMAG(x) != IMAG(y))) return BOOL_F;
- #endif
- return BOOL_T;
- }
- return BOOL_F;
- }
-
- extern SCM scm_array_equal ();
-
- PROC1 (s_equal_p, "equal?", tc7_rpsubr, scm_equal_p);
- #ifdef __STDC__
- SCM
- scm_equal_p (SCM x, SCM y)
- #else
- SCM
- scm_equal_p (x, y)
- SCM x;
- SCM y;
- #endif
- {
- CHECK_STACK;
- tailrecurse: POLL;
- if (x==y) return BOOL_T;
- if (IMP(x)) return BOOL_F;
- if (IMP(y)) return BOOL_F;
- if (CONSP(x) && CONSP(y)) {
- if FALSEP(scm_equal_p(CAR(x), CAR(y))) return BOOL_F;
- x = CDR(x);
- y = CDR(y);
- goto tailrecurse;
- }
- /* this ensures that types and scm_length are the same. */
- if (CAR(x) != CAR(y)) return BOOL_F;
- switch (TYP7(x)) {
- default: return BOOL_F;
- case tc7_string: return scm_string_equal_p(x, y);
- case tc7_vector: return scm_vector_equal_p(x, y);
- case tc7_lvector:
- {
- SCM hook;
- hook = scm_get_lvector_hook (x, LV_EQUAL_FN);
- if (hook == BOOL_F)
- return scm_vector_equal_p (x, y);
- else
- return scm_apply (hook,
- scm_cons (x, scm_cons (y, EOL)),
- EOL);
- }
- case tc7_smob: {
- int i = SMOBNUM(x);
- if (!(i < scm_numsmob)) return BOOL_F;
- if (scm_smobs[i].equalp)
- return (scm_smobs[i].equalp)(x, y);
- else
- return BOOL_F;
- }
- case tc7_bvect: case tc7_uvect: case tc7_ivect:
- case tc7_fvect: case tc7_cvect: case tc7_dvect:
- if ( scm_tc16_array
- && scm_smobs[0x0ff & (scm_tc16_array >> 8)].equalp)
- return scm_array_equal(x, y);
- }
- return BOOL_F;
- }
-
-
- #ifdef __STDC__
- void
- scm_init_eq (void)
- #else
- void
- scm_init_eq ()
- #endif
- {
- #include "eq.x"
- }
-
-