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-rw-r--r--libguile/eq.c162
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diff --git a/libguile/eq.c b/libguile/eq.c
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+++ b/libguile/eq.c
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+/* 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 <stdio.h>
+#include "_scm.h"
+
+
+SCM_PROC1 (s_eq_p, "eq?", scm_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)
+ ? SCM_BOOL_T
+ : SCM_BOOL_F);
+}
+
+
+SCM_PROC1 (s_eqv_p, "eqv?", scm_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 SCM_BOOL_T;
+ if SCM_IMP(x) return SCM_BOOL_F;
+ if SCM_IMP(y) return SCM_BOOL_F;
+ /* this ensures that types and scm_length are the same. */
+ if (SCM_CAR(x) != SCM_CAR(y)) return SCM_BOOL_F;
+ if SCM_NUMP(x) {
+# ifdef SCM_BIGDIG
+ if SCM_BIGP(x) return (0==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F;
+# endif
+#ifdef SCM_FLOATS
+ if (SCM_REALPART(x) != SCM_REALPART(y)) return SCM_BOOL_F;
+ if (SCM_CPLXP(x) && (SCM_IMAG(x) != SCM_IMAG(y))) return SCM_BOOL_F;
+#endif
+ return SCM_BOOL_T;
+ }
+ return SCM_BOOL_F;
+}
+
+
+SCM_PROC1 (s_equal_p, "equal?", scm_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
+{
+ SCM_CHECK_STACK;
+ tailrecurse: SCM_ASYNC_TICK;
+ if (x==y) return SCM_BOOL_T;
+ if (SCM_IMP(x)) return SCM_BOOL_F;
+ if (SCM_IMP(y)) return SCM_BOOL_F;
+ if (SCM_CONSP(x) && SCM_CONSP(y)) {
+ if SCM_FALSEP(scm_equal_p(SCM_CAR(x), SCM_CAR(y))) return SCM_BOOL_F;
+ x = SCM_CDR(x);
+ y = SCM_CDR(y);
+ goto tailrecurse;
+ }
+ /* this ensures that types and scm_length are the same. */
+ if (SCM_CAR(x) != SCM_CAR(y)) return SCM_BOOL_F;
+ switch (SCM_TYP7(x)) {
+ default: return SCM_BOOL_F;
+ case scm_tc7_substring:
+ case scm_tc7_mb_substring:
+ case scm_tc7_mb_string:
+ case scm_tc7_string: return scm_string_equal_p(x, y);
+ case scm_tc7_vector:
+ case scm_tc7_wvect:
+ return scm_vector_equal_p(x, y);
+ case scm_tc7_smob: {
+ int i = SCM_SMOBNUM(x);
+ if (!(i < scm_numsmob)) return SCM_BOOL_F;
+ if (scm_smobs[i].equalp)
+ return (scm_smobs[i].equalp)(x, y);
+ else
+ return SCM_BOOL_F;
+ }
+ case scm_tc7_bvect: case scm_tc7_uvect: case scm_tc7_ivect:
+ case scm_tc7_fvect: case scm_tc7_cvect: case scm_tc7_dvect:
+ case scm_tc7_svect:
+#ifdef LONGLONGS
+ case scm_tc7_llvect:
+#endif
+ case scm_tc7_byvect:
+ if ( scm_tc16_array
+ && scm_smobs[0x0ff & (scm_tc16_array >> 8)].equalp)
+ return scm_array_equal_p(x, y);
+ }
+ return SCM_BOOL_F;
+}
+
+
+
+
+
+#ifdef __STDC__
+void
+scm_init_eq (void)
+#else
+void
+scm_init_eq ()
+#endif
+{
+#include "eq.x"
+}
+