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-rw-r--r--libguile/numbers.c4101
1 files changed, 4101 insertions, 0 deletions
diff --git a/libguile/numbers.c b/libguile/numbers.c
new file mode 100644
index 000000000..b572ed79f
--- /dev/null
+++ b/libguile/numbers.c
@@ -0,0 +1,4101 @@
+/* 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 <math.h>
+#include "_scm.h"
+
+
+
+#define DIGITS '0':case '1':case '2':case '3':case '4':\
+ case '5':case '6':case '7':case '8':case '9'
+
+
+/* IS_INF tests its floating point number for infiniteness
+ */
+#ifndef IS_INF
+# define IS_INF(x) ((x)==(x)/2)
+#endif
+
+/* MAXEXP is the maximum double precision expontent
+ * FLTMAX is less than or scm_equal the largest single precision float
+ */
+
+#ifdef SCM_FLOATS
+# ifdef STDC_HEADERS
+# ifndef GO32
+# include <float.h>
+# endif /* ndef GO32 */
+# endif /* def STDC_HEADERS */
+# ifdef DBL_MAX_10_EXP
+# define MAXEXP DBL_MAX_10_EXP
+# else
+# define MAXEXP 308 /* IEEE doubles */
+# endif /* def DBL_MAX_10_EXP */
+# ifdef FLT_MAX
+# define FLTMAX FLT_MAX
+# else
+# define FLTMAX 1e+23
+# endif /* def FLT_MAX */
+#endif /* def SCM_FLOATS */
+
+
+
+SCM_PROC(s_exact_p, "exact?", 1, 0, 0, scm_exact_p);
+#ifdef __STDC__
+SCM
+scm_exact_p(SCM x)
+#else
+SCM
+scm_exact_p(x)
+ SCM x;
+#endif
+{
+ if SCM_INUMP(x) return SCM_BOOL_T;
+#ifdef SCM_BIGDIG
+ if (SCM_NIMP(x) && SCM_BIGP(x)) return SCM_BOOL_T;
+#endif
+ return SCM_BOOL_F;
+}
+
+SCM_PROC(s_odd_p, "odd?", 1, 0, 0, scm_odd_p);
+#ifdef __STDC__
+SCM
+scm_odd_p(SCM n)
+#else
+SCM
+scm_odd_p(n)
+ SCM n;
+#endif
+{
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(n) {
+ SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_odd_p);
+ return (1 & SCM_BDIGITS(n)[0]) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_odd_p);
+#endif
+ return (4 & (int)n) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+SCM_PROC(s_even_p, "even?", 1, 0, 0, scm_even_p);
+#ifdef __STDC__
+SCM
+scm_even_p(SCM n)
+#else
+SCM
+scm_even_p(n)
+ SCM n;
+#endif
+{
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(n) {
+ SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_even_p);
+ return (1 & SCM_BDIGITS(n)[0]) ? SCM_BOOL_F : SCM_BOOL_T;
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_even_p);
+#endif
+ return (4 & (int)n) ? SCM_BOOL_F : SCM_BOOL_T;
+}
+
+SCM_PROC(s_abs, "abs", 1, 0, 0, scm_abs);
+#ifdef __STDC__
+SCM
+scm_abs(SCM x)
+#else
+SCM
+scm_abs(x)
+ SCM x;
+#endif
+{
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_abs);
+ if (SCM_TYP16(x)==scm_tc16_bigpos) return x;
+ return scm_copybig(x, 0);
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_abs);
+#endif
+ if (SCM_INUM(x) >= 0) return x;
+ x = -SCM_INUM(x);
+ if (!SCM_POSSCM_FIXABLE(x))
+#ifdef SCM_BIGDIG
+ return scm_long2big(x);
+#else
+ scm_wta(SCM_MAKINUM(-x), (char *)SCM_OVSCM_FLOW, s_abs);
+#endif
+ return SCM_MAKINUM(x);
+}
+
+SCM_PROC(s_quotient, "quotient", 2, 0, 0, scm_quotient);
+#ifdef __STDC__
+SCM
+scm_quotient(SCM x, SCM y)
+#else
+SCM
+scm_quotient(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ register long z;
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ long w;
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_quotient);
+ if SCM_NINUMP(y) {
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return scm_divbigbig(SCM_BDIGITS(x),
+ SCM_NUMDIGS(x),
+ SCM_BDIGITS(y),
+ SCM_NUMDIGS(y),
+ SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y),
+ 2);
+ }
+ z = SCM_INUM(y);
+ SCM_ASRTGO(z, ov);
+ if (1==z) return x;
+ if (z < 0) z = -z;
+ if (z < SCM_BIGRAD) {
+ w = scm_copybig(x, SCM_BIGSIGN(x) ? (y>0) : (y<0));
+ scm_divbigdig(SCM_BDIGITS(w), SCM_NUMDIGS(w), (SCM_BIGDIG)z);
+ return scm_normbig(w);
+ }
+#ifndef SCM_DIGSTOOBIG
+ w = scm_pseudolong(z);
+ return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), (SCM_BIGDIG *)&w, SCM_DIGSPERLONG,
+ SCM_BIGSIGN(x) ? (y>0) : (y<0), 2);
+#else
+ { SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(z, zdigs);
+ return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), zdigs, SCM_DIGSPERLONG,
+ SCM_BIGSIGN(x) ? (y>0) : (y<0), 2);
+ }
+#endif
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_quotient);
+# endif
+ return SCM_INUM0;
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_quotient);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_quotient);
+#endif
+ if ((z = SCM_INUM(y))==0)
+ ov: scm_wta(y, (char *)SCM_OVSCM_FLOW, s_quotient);
+ z = SCM_INUM(x)/z;
+#ifdef BADIVSGNS
+ {
+#if (__TURBOC__==1)
+ long t = ((y<0) ? -SCM_INUM(x) : SCM_INUM(x))%SCM_INUM(y);
+#else
+ long t = SCM_INUM(x)%SCM_INUM(y);
+#endif
+ if (t==0) ;
+ else if (t < 0)
+ if (x < 0) ;
+ else z--;
+ else if (x < 0) z++;
+ }
+#endif
+ if (!SCM_FIXABLE(z))
+#ifdef SCM_BIGDIG
+ return scm_long2big(z);
+#else
+ scm_wta(x, (char *)SCM_OVSCM_FLOW, s_quotient);
+#endif
+ return SCM_MAKINUM(z);
+}
+
+SCM_PROC(s_remainder, "remainder", 2, 0, 0, scm_remainder);
+#ifdef __STDC__
+SCM
+scm_remainder(SCM x, SCM y)
+#else
+SCM
+scm_remainder(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ register long z;
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_remainder);
+ if SCM_NINUMP(y) {
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(x), 0);
+ }
+ if (!(z = SCM_INUM(y))) goto ov;
+ return scm_divbigint(x, z, SCM_BIGSIGN(x), 0);
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_remainder);
+# endif
+ return x;
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_remainder);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_remainder);
+#endif
+ if (!(z = SCM_INUM(y)))
+ ov: scm_wta(y, (char *)SCM_OVSCM_FLOW, s_remainder);
+#if (__TURBOC__==1)
+ if (z < 0) z = -z;
+#endif
+ z = SCM_INUM(x)%z;
+#ifdef BADIVSGNS
+ if (!z) ;
+ else if (z < 0)
+ if (x < 0) ;
+ else z += SCM_INUM(y);
+ else if (x < 0) z -= SCM_INUM(y);
+#endif
+ return SCM_MAKINUM(z);
+}
+
+SCM_PROC(s_modulo, "modulo", 2, 0, 0, scm_modulo);
+#ifdef __STDC__
+SCM
+scm_modulo(SCM x, SCM y)
+#else
+SCM
+scm_modulo(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ register long yy, z;
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_modulo);
+ if SCM_NINUMP(y) {
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(y), (SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y)) ? 1 : 0);
+ }
+ if (!(z = SCM_INUM(y))) goto ov;
+ return scm_divbigint(x, z, y < 0, (SCM_BIGSIGN(x) ? (y > 0) : (y < 0)) ? 1 : 0);
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_modulo);
+# endif
+ return (SCM_BIGSIGN(y) ? (x>0) : (x<0)) ? scm_sum(x, y) : x;
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_modulo);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_modulo);
+#endif
+ if (!(yy = SCM_INUM(y)))
+ ov: scm_wta(y, (char *)SCM_OVSCM_FLOW, s_modulo);
+#if (__TURBOC__==1)
+ z = SCM_INUM(x);
+ z = ((yy<0) ? -z : z)%yy;
+#else
+ z = SCM_INUM(x)%yy;
+#endif
+ return SCM_MAKINUM(((yy<0) ? (z>0) : (z<0)) ? z+yy : z);
+}
+
+SCM_PROC1 (s_gcd, "gcd", scm_tc7_asubr, scm_gcd);
+#ifdef __STDC__
+SCM
+scm_gcd(SCM x, SCM y)
+#else
+SCM
+scm_gcd(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ register long u, v, k, t;
+ if SCM_UNBNDP(y) return SCM_UNBNDP(x) ? SCM_INUM0 : x;
+ tailrec:
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ big_gcd:
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_gcd);
+ if SCM_BIGSIGN(x) x = scm_copybig(x, 0);
+ newy:
+ if SCM_NINUMP(y) {
+ SCM_ASSERT(SCM_NIMP(y) && SCM_BIGP(y), y, SCM_ARG2, s_gcd);
+ if SCM_BIGSIGN(y) y = scm_copybig(y, 0);
+ switch (scm_bigcomp(x, y)) {
+ case -1:
+ swaprec: t = scm_remainder(x, y); x = y; y = t; goto tailrec;
+ case 0: return x;
+ case 1: y = scm_remainder(y, x); goto newy;
+ }
+ /* instead of the switch, we could just return scm_gcd(y, scm_modulo(x, y)); */
+ }
+ if (SCM_INUM0==y) return x; goto swaprec;
+ }
+ if SCM_NINUMP(y) { t=x; x=y; y=t; goto big_gcd;}
+#else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_gcd);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_gcd);
+#endif
+ u = SCM_INUM(x);
+ if (u<0) u = -u;
+ v = SCM_INUM(y);
+ if (v<0) v = -v;
+ else if (0==v) goto getout;
+ if (0==u) {u = v; goto getout;}
+ for (k = 1;!(1 & ((int)u|(int)v));k <<= 1, u >>= 1, v >>= 1);
+ if (1 & (int)u) t = -v;
+ else {
+ t = u;
+ b3:
+ t = SCM_SRS(t, 1);
+ }
+ if (!(1 & (int)t)) goto b3;
+ if (t>0) u = t;
+ else v = -t;
+ if ((t = u-v)) goto b3;
+ u = u*k;
+ getout:
+ if (!SCM_POSSCM_FIXABLE(u))
+#ifdef SCM_BIGDIG
+ return scm_long2big(u);
+#else
+ scm_wta(x, (char *)SCM_OVSCM_FLOW, s_gcd);
+#endif
+ return SCM_MAKINUM(u);
+}
+
+SCM_PROC1 (s_lcm, "lcm", scm_tc7_asubr, scm_lcm);
+#ifdef __STDC__
+SCM
+scm_lcm(SCM n1, SCM n2)
+#else
+SCM
+scm_lcm(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ SCM d;
+ if SCM_UNBNDP(n2) {
+ n2 = SCM_MAKINUM(1L);
+ if SCM_UNBNDP(n1) return n2;
+ }
+ d = scm_gcd(n1, n2);
+ if (SCM_INUM0==d) return d;
+ return scm_abs(scm_product(n1, scm_quotient(n2, d)));
+}
+
+#ifndef SCM_BIGDIG
+# ifndef SCM_FLOATS
+# define scm_long2num SCM_MAKINUM
+# endif
+#endif
+
+#ifndef scm_long2num
+SCM_PROC1 (s_logand, "logand", scm_tc7_asubr, scm_logand);
+#ifdef __STDC__
+SCM
+scm_logand(SCM n1, SCM n2)
+#else
+SCM
+scm_logand(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ return scm_long2num(scm_num2long(n1, (char *)SCM_ARG1, s_logand)
+ & scm_num2long(n2, (char *)SCM_ARG2, s_logand));
+}
+
+SCM_PROC1 (s_logior, "logior", scm_tc7_asubr, scm_logior);
+#ifdef __STDC__
+SCM
+scm_logior(SCM n1, SCM n2)
+#else
+SCM
+scm_logior(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ return scm_long2num(scm_num2long(n1, (char *)SCM_ARG1, s_logior)
+ | scm_num2long(n2, (char *)SCM_ARG2, s_logior));
+}
+
+SCM_PROC1 (s_logxor, "logxor", scm_tc7_asubr, scm_logxor);
+#ifdef __STDC__
+SCM
+scm_logxor(SCM n1, SCM n2)
+#else
+SCM
+scm_logxor(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ return scm_long2num(scm_num2long(n1, (char *)SCM_ARG1, s_logxor)
+ ^ scm_num2long(n2, (char *)SCM_ARG2, s_logxor));
+}
+
+SCM_PROC(s_logtest, "logtest", 2, 0, 0, scm_logtest);
+#ifdef __STDC__
+SCM
+scm_logtest(SCM n1, SCM n2)
+#else
+SCM
+scm_logtest(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ return ((scm_num2long (n1, (char *)SCM_ARG1, s_logtest)
+ & scm_num2long (n2, (char *)SCM_ARG2, s_logtest))
+ ? SCM_BOOL_T : SCM_BOOL_F);
+}
+
+
+SCM_PROC(s_logbit_p, "logbit?", 2, 0, 0, scm_logbit_p);
+#ifdef __STDC__
+SCM
+scm_logbit_p(SCM n1, SCM n2)
+#else
+SCM
+scm_logbit_p(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ return (((1 << scm_num2long (n1, (char *)SCM_ARG1, s_logtest))
+ & scm_num2long (n2, (char *)SCM_ARG2, s_logtest))
+ ? SCM_BOOL_T : SCM_BOOL_F);
+}
+
+#else
+
+SCM_PROC1 (s_logand, "logand", scm_tc7_asubr, scm_logand);
+#ifdef __STDC__
+SCM
+scm_logand(SCM n1, SCM n2)
+#else
+SCM
+scm_logand(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logand);
+ SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logand);
+ return SCM_MAKINUM(SCM_INUM(n1) & SCM_INUM(n2));
+}
+
+SCM_PROC1 (s_logior, "logior", scm_tc7_asubr, scm_logior);
+#ifdef __STDC__
+SCM
+scm_logior(SCM n1, SCM n2)
+#else
+SCM
+scm_logior(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logior);
+ SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logior);
+ return SCM_MAKINUM(SCM_INUM(n1) | SCM_INUM(n2));
+}
+
+SCM_PROC1 (s_logxor, "logxor", scm_tc7_asubr, scm_logxor);
+#ifdef __STDC__
+SCM
+scm_logxor(SCM n1, SCM n2)
+#else
+SCM
+scm_logxor(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logxor);
+ SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logxor);
+ return SCM_MAKINUM(SCM_INUM(n1) ^ SCM_INUM(n2));
+}
+
+SCM_PROC(s_logtest, "logtest", 2, 0, 0, scm_logtest);
+#ifdef __STDC__
+SCM
+scm_logtest(SCM n1, SCM n2)
+#else
+SCM
+scm_logtest(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(n1), n1, SCM_ARG1, s_logtest);
+ SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logtest);
+ return (SCM_INUM(n1) & SCM_INUM(n2)) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+SCM_PROC(s_logbit_p, "logbit?", 2, 0, 0, scm_logbit_p);
+#ifdef __STDC__
+SCM
+scm_logbit_p(SCM n1, SCM n2)
+#else
+SCM
+scm_logbit_p(n1, n2)
+ SCM n1;
+ SCM n2;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(n1) && SCM_INUM(n1) >= 0, n1, SCM_ARG1, s_logbit_p);
+ SCM_ASSERT(SCM_INUMP(n2), n2, SCM_ARG2, s_logbit_p);
+ return ((1 << SCM_INUM(n1)) & SCM_INUM(n2)) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+#endif
+
+SCM_PROC(s_lognot, "lognot", 1, 0, 0, scm_lognot);
+#ifdef __STDC__
+SCM
+scm_lognot(SCM n)
+#else
+SCM
+scm_lognot(n)
+ SCM n;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_lognot);
+ return scm_difference(SCM_MAKINUM(-1L), n);
+}
+
+SCM_PROC(s_integer_expt, "integer-expt", 2, 0, 0, scm_integer_expt);
+#ifdef __STDC__
+SCM
+scm_integer_expt(SCM z1, SCM z2)
+#else
+SCM
+scm_integer_expt(z1, z2)
+ SCM z1;
+ SCM z2;
+#endif
+{
+ SCM acc = SCM_MAKINUM(1L);
+#ifdef SCM_BIGDIG
+ if (SCM_INUM0==z1 || acc==z1) return z1;
+ else if (SCM_MAKINUM(-1L)==z1) return SCM_BOOL_F==scm_even_p(z2)?z1:acc;
+#endif
+ SCM_ASSERT(SCM_INUMP(z2), z2, SCM_ARG2, s_integer_expt);
+ z2 = SCM_INUM(z2);
+ if (z2 < 0) {
+ z2 = -z2;
+ z1 = scm_divide(z1, SCM_UNDEFINED);
+ }
+ while(1) {
+ if (0==z2) return acc;
+ if (1==z2) return scm_product(acc, z1);
+ if (z2 & 1) acc = scm_product(acc, z1);
+ z1 = scm_product(z1, z1);
+ z2 >>= 1;
+ }
+}
+
+SCM_PROC(s_ash, "ash", 2, 0, 0, scm_ash);
+#ifdef __STDC__
+SCM
+scm_ash(SCM n, SCM cnt)
+#else
+SCM
+scm_ash(n, cnt)
+ SCM n;
+ SCM cnt;
+#endif
+{
+ SCM res = SCM_INUM(n);
+ SCM_ASSERT(SCM_INUMP(cnt), cnt, SCM_ARG2, s_ash);
+#ifdef SCM_BIGDIG
+ if(cnt < 0) {
+ res = scm_integer_expt(SCM_MAKINUM(2), SCM_MAKINUM(-SCM_INUM(cnt)));
+ if (SCM_NFALSEP(scm_negative_p(n)))
+ return scm_sum(SCM_MAKINUM(-1L), scm_quotient(scm_sum(SCM_MAKINUM(1L), n), res));
+ else return scm_quotient(n, res);
+ }
+ else return scm_product(n, scm_integer_expt(SCM_MAKINUM(2), cnt));
+#else
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_ash);
+ cnt = SCM_INUM(cnt);
+ if (cnt < 0) return SCM_MAKINUM(SCM_SRS(res, -cnt));
+ res = SCM_MAKINUM(res<<cnt);
+ if (SCM_INUM(res)>>cnt != SCM_INUM(n)) scm_wta(n, (char *)SCM_OVSCM_FLOW, s_ash);
+ return res;
+#endif
+}
+
+SCM_PROC(s_bit_extract, "bit-extract", 3, 0, 0, scm_bit_extract);
+#ifdef __STDC__
+SCM
+scm_bit_extract(SCM n, SCM start, SCM end)
+#else
+SCM
+scm_bit_extract(n, start, end)
+ SCM n;
+ SCM start;
+ SCM end;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(start), start, SCM_ARG2, s_bit_extract);
+ SCM_ASSERT(SCM_INUMP(end), end, SCM_ARG3, s_bit_extract);
+ start = SCM_INUM(start); end = SCM_INUM(end);
+ SCM_ASSERT(end >= start, SCM_MAKINUM(end), SCM_OUTOFRANGE, s_bit_extract);
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(n)
+ return
+ scm_logand(scm_difference(scm_integer_expt(SCM_MAKINUM(2), SCM_MAKINUM(end - start)),
+ SCM_MAKINUM(1L)),
+ scm_ash(n, SCM_MAKINUM(-start)));
+#else
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_bit_extract);
+#endif
+ return SCM_MAKINUM((SCM_INUM(n)>>start) & ((1L<<(end-start))-1));
+}
+
+char scm_logtab[] = {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
+SCM_PROC(s_logcount, "logcount", 1, 0, 0, scm_logcount);
+#ifdef __STDC__
+SCM
+scm_logcount (SCM n)
+#else
+SCM
+scm_logcount(n)
+ SCM n;
+#endif
+{
+ register unsigned long c = 0;
+ register long nn;
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(n) {
+ scm_sizet i; SCM_BIGDIG *ds, d;
+ SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_logcount);
+ if SCM_BIGSIGN(n) return scm_logcount(scm_difference(SCM_MAKINUM(-1L), n));
+ ds = SCM_BDIGITS(n);
+ for(i = SCM_NUMDIGS(n); i--; )
+ for(d = ds[i]; d; d >>= 4) c += scm_logtab[15 & d];
+ return SCM_MAKINUM(c);
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_logcount);
+#endif
+ if ((nn = SCM_INUM(n)) < 0) nn = -1 - nn;
+ for(; nn; nn >>= 4) c += scm_logtab[15 & nn];
+ return SCM_MAKINUM(c);
+}
+
+char scm_ilentab[] = {0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4};
+SCM_PROC(s_integer_length, "integer-length", 1, 0, 0, scm_integer_length);
+#ifdef __STDC__
+SCM
+scm_integer_length(SCM n)
+#else
+SCM
+scm_integer_length(n)
+ SCM n;
+#endif
+{
+ register unsigned long c = 0;
+ register long nn;
+ unsigned int l = 4;
+#ifdef SCM_BIGDIG
+ if SCM_NINUMP(n) {
+ SCM_BIGDIG *ds, d;
+ SCM_ASSERT(SCM_NIMP(n) && SCM_BIGP(n), n, SCM_ARG1, s_integer_length);
+ if SCM_BIGSIGN(n) return scm_integer_length(scm_difference(SCM_MAKINUM(-1L), n));
+ ds = SCM_BDIGITS(n);
+ d = ds[c = SCM_NUMDIGS(n)-1];
+ for(c *= SCM_BITSPERDIG; d; d >>= 4) {c += 4; l = scm_ilentab[15 & d];}
+ return SCM_MAKINUM(c - 4 + l);
+ }
+#else
+ SCM_ASSERT(SCM_INUMP(n), n, SCM_ARG1, s_integer_length);
+#endif
+ if ((nn = SCM_INUM(n)) < 0) nn = -1 - nn;
+ for(;nn; nn >>= 4) {c += 4; l = scm_ilentab[15 & nn];}
+ return SCM_MAKINUM(c - 4 + l);
+}
+
+
+#ifdef SCM_BIGDIG
+char s_bignum[] = "bignum";
+#ifdef __STDC__
+SCM
+scm_mkbig(scm_sizet nlen, int sign)
+#else
+SCM
+scm_mkbig(nlen, sign)
+ scm_sizet nlen;
+ int sign;
+#endif
+{
+ SCM v = nlen;
+ if (((v << 16) >> 16) != nlen)
+ scm_wta(SCM_MAKINUM(nlen), (char *)SCM_NALLOC, s_bignum);
+ SCM_NEWCELL(v);
+ SCM_DEFER_INTS;
+ SCM_SETCHARS(v, scm_must_malloc((long)(nlen*sizeof(SCM_BIGDIG)), s_bignum));
+ SCM_SETNUMDIGS(v, nlen, sign?scm_tc16_bigneg:scm_tc16_bigpos);
+ SCM_ALLOW_INTS;
+ return v;
+}
+
+#ifdef __STDC__
+SCM
+scm_big2inum(SCM b, scm_sizet l)
+#else
+SCM
+scm_big2inum(b, l)
+ SCM b;
+ scm_sizet l;
+#endif
+{
+ unsigned long num = 0;
+ SCM_BIGDIG *tmp = SCM_BDIGITS(b);
+ while (l--) num = SCM_BIGUP(num) + tmp[l];
+ if (SCM_TYP16(b)==scm_tc16_bigpos) {
+ if SCM_POSSCM_FIXABLE(num) return SCM_MAKINUM(num);
+ }
+ else if SCM_UNEGSCM_FIXABLE(num) return SCM_MAKINUM(-num);
+ return b;
+}
+
+
+char s_adjbig[] = "scm_adjbig";
+#ifdef __STDC__
+SCM
+scm_adjbig(SCM b, scm_sizet nlen)
+#else
+SCM
+scm_adjbig(b, nlen)
+ SCM b;
+ scm_sizet nlen;
+#endif
+{
+ long nsiz = nlen;
+ if (((nsiz << 16) >> 16) != nlen) scm_wta(SCM_MAKINUM(nsiz), (char *)SCM_NALLOC, s_adjbig);
+ SCM_DEFER_INTS;
+ SCM_SETCHARS(b, (SCM_BIGDIG *)scm_must_realloc((char *)SCM_CHARS(b),
+ (long)(SCM_NUMDIGS(b)*sizeof(SCM_BIGDIG)),
+ (long)(nsiz*sizeof(SCM_BIGDIG)), s_adjbig));
+ SCM_SETNUMDIGS(b, nsiz, SCM_TYP16(b));
+ SCM_ALLOW_INTS;
+ return b;
+}
+
+
+#ifdef __STDC__
+SCM
+scm_normbig(SCM b)
+#else
+SCM
+scm_normbig(b)
+ SCM b;
+#endif
+{
+#ifndef _UNICOS
+ scm_sizet nlen = SCM_NUMDIGS(b);
+#else
+ int nlen = SCM_NUMDIGS(b); /* unsigned nlen breaks on Cray when nlen => 0 */
+#endif
+ SCM_BIGDIG *zds = SCM_BDIGITS(b);
+ while (nlen-- && !zds[nlen]); nlen++;
+ if (nlen * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM))
+ if SCM_INUMP(b = scm_big2inum(b, (scm_sizet)nlen)) return b;
+ if (SCM_NUMDIGS(b)==nlen) return b;
+ return scm_adjbig(b, (scm_sizet)nlen);
+}
+
+
+#ifdef __STDC__
+SCM
+scm_copybig(SCM b, int sign)
+#else
+SCM
+scm_copybig(b, sign)
+ SCM b;
+ int sign;
+#endif
+{
+ scm_sizet i = SCM_NUMDIGS(b);
+ SCM ans = scm_mkbig(i, sign);
+ SCM_BIGDIG *src = SCM_BDIGITS(b), *dst = SCM_BDIGITS(ans);
+ while (i--) dst[i] = src[i];
+ return ans;
+}
+
+
+#ifdef __STDC__
+SCM
+scm_long2big(long n)
+#else
+SCM
+scm_long2big(n)
+ long n;
+#endif
+{
+ scm_sizet i = 0;
+ SCM_BIGDIG *digits;
+ SCM ans = scm_mkbig(SCM_DIGSPERLONG, n<0);
+ digits = SCM_BDIGITS(ans);
+ if (n < 0) n = -n;
+ while (i < SCM_DIGSPERLONG) {
+ digits[i++] = SCM_BIGLO(n);
+ n = SCM_BIGDN((unsigned long)n);
+ }
+ return ans;
+}
+
+#ifdef LONGLONGS
+#ifdef __STDC__
+SCM
+scm_long_long2big(long_long n)
+#else
+SCM
+scm_long_long2big(n)
+ long_long n;
+#endif
+{
+ scm_sizet i;
+ SCM_BIGDIG *digits;
+ SCM ans;
+ int n_digits;
+
+ {
+ long tn;
+ tn = (long) n;
+ if ((long long)tn == n)
+ return scm_long2big (tn);
+ }
+
+ {
+ long_long tn;
+
+ for (tn = n, n_digits = 0;
+ tn;
+ ++n_digits, tn = SCM_BIGDN ((ulong_long)tn))
+ ;
+ }
+
+ i = 0;
+ ans = scm_mkbig(n_digits, n<0);
+ digits = SCM_BDIGITS(ans);
+ if (n < 0)
+ n = -n;
+ while (i < n_digits) {
+ digits[i++] = SCM_BIGLO(n);
+ n = SCM_BIGDN((ulong_long)n);
+ }
+ return ans;
+}
+#endif
+
+#ifdef __STDC__
+SCM
+scm_2ulong2big(unsigned long * np)
+#else
+SCM
+scm_2ulong2big(np)
+ unsigned long * np;
+#endif
+{
+ unsigned long n;
+ scm_sizet i;
+ SCM_BIGDIG *digits;
+ SCM ans;
+
+ ans = scm_mkbig(2 * SCM_DIGSPERLONG, 0);
+ digits = SCM_BDIGITS(ans);
+
+ n = np[0];
+ for (i = 0; i < SCM_DIGSPERLONG; ++i)
+ {
+ digits[i] = SCM_BIGLO(n);
+ n = SCM_BIGDN((unsigned long)n);
+ }
+ n = np[1];
+ for (i = 0; i < SCM_DIGSPERLONG; ++i)
+ {
+ digits[i + SCM_DIGSPERLONG] = SCM_BIGLO(n);
+ n = SCM_BIGDN((unsigned long)n);
+ }
+ return ans;
+}
+
+
+#ifdef __STDC__
+SCM
+scm_ulong2big(unsigned long n)
+#else
+SCM
+scm_ulong2big(n)
+ unsigned long n;
+#endif
+{
+ scm_sizet i = 0;
+ SCM_BIGDIG *digits;
+ SCM ans = scm_mkbig(SCM_DIGSPERLONG, 0);
+ digits = SCM_BDIGITS(ans);
+ while (i < SCM_DIGSPERLONG) {
+ digits[i++] = SCM_BIGLO(n);
+ n = SCM_BIGDN(n);
+ }
+ return ans;
+}
+
+
+#ifdef __STDC__
+int
+scm_bigcomp(SCM x, SCM y)
+#else
+int
+scm_bigcomp(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ int xsign = SCM_BIGSIGN(x);
+ int ysign = SCM_BIGSIGN(y);
+ scm_sizet xlen, ylen;
+ if (ysign < xsign) return 1;
+ if (ysign > xsign) return -1;
+ if ((ylen = SCM_NUMDIGS(y)) > (xlen = SCM_NUMDIGS(x))) return (xsign) ? -1 : 1;
+ if (ylen < xlen) return (xsign) ? 1 : -1;
+ while(xlen-- && (SCM_BDIGITS(y)[xlen]==SCM_BDIGITS(x)[xlen]));
+ if (-1==xlen) return 0;
+ return (SCM_BDIGITS(y)[xlen] > SCM_BDIGITS(x)[xlen]) ?
+ (xsign ? -1 : 1) : (xsign ? 1 : -1);
+}
+
+#ifndef SCM_DIGSTOOBIG
+
+#ifdef __STDC__
+long
+scm_pseudolong(long x)
+#else
+long
+scm_pseudolong(x)
+ long x;
+#endif
+{
+ union {
+ long l;
+ SCM_BIGDIG bd[SCM_DIGSPERLONG];
+ } p;
+ scm_sizet i = 0;
+ if (x < 0) x = -x;
+ while (i < SCM_DIGSPERLONG) {p.bd[i++] = SCM_BIGLO(x); x = SCM_BIGDN(x);}
+ /* p.bd[0] = SCM_BIGLO(x); p.bd[1] = SCM_BIGDN(x); */
+ return p.l;
+}
+
+#else
+
+#ifdef __STDC__
+void
+scm_longdigs(long x, SCM_BIGDIG digs[])
+#else
+void
+scm_longdigs(x, digs)
+ long x;
+ SCM_BIGDIG digs[];
+#endif
+{
+ scm_sizet i = 0;
+ if (x < 0) x = -x;
+ while (i < SCM_DIGSPERLONG) {digs[i++] = SCM_BIGLO(x); x = SCM_BIGDN(x);}
+}
+#endif
+
+
+#ifdef __STDC__
+SCM
+scm_addbig(SCM_BIGDIG *x, scm_sizet nx, int xsgn, SCM bigy, int sgny)
+#else
+SCM
+scm_addbig(x, nx, xsgn, bigy, sgny)
+ SCM_BIGDIG *x;
+ scm_sizet nx;
+ int xsgn;
+ SCM bigy;
+ int sgny;
+#endif
+{
+ /* Assumes nx <= SCM_NUMDIGS(bigy) */
+ /* Assumes xsgn and sgny scm_equal either 0 or 0x0100 */
+ long num = 0;
+ scm_sizet i = 0, ny = SCM_NUMDIGS(bigy);
+ SCM z = scm_copybig(bigy, SCM_BIGSIGN(bigy) ^ sgny);
+ SCM_BIGDIG *zds = SCM_BDIGITS(z);
+ if (xsgn ^ SCM_BIGSIGN(z)) {
+ do {
+ num += (long) zds[i] - x[i];
+ if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;}
+ else {zds[i] = SCM_BIGLO(num); num = 0;}
+ } while (++i < nx);
+ if (num && nx==ny) {
+ num = 1; i = 0;
+ SCM_CAR(z) ^= 0x0100;
+ do {
+ num += (SCM_BIGRAD-1) - zds[i];
+ zds[i++] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ } while (i < ny);
+ }
+ else while (i < ny) {
+ num += zds[i];
+ if (num < 0) {zds[i++] = num + SCM_BIGRAD; num = -1;}
+ else {zds[i++] = SCM_BIGLO(num); num = 0;}
+ }
+ } else {
+ do {
+ num += (long) zds[i] + x[i];
+ zds[i++] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ } while (i < nx);
+ if (!num) return z;
+ while (i < ny) {
+ num += zds[i];
+ zds[i++] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ if (!num) return z;
+ }
+ if (num) {z = scm_adjbig(z, ny+1); SCM_BDIGITS(z)[ny] = num; return z;}
+ }
+ return scm_normbig(z);
+}
+
+#ifdef __STDC__
+SCM
+scm_mulbig(SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn)
+#else
+SCM
+scm_mulbig(x, nx, y, ny, sgn)
+ SCM_BIGDIG *x;
+ scm_sizet nx;
+ SCM_BIGDIG *y;
+ scm_sizet ny;
+ int sgn;
+#endif
+{
+ scm_sizet i = 0, j = nx + ny;
+ unsigned long n = 0;
+ SCM z = scm_mkbig(j, sgn);
+ SCM_BIGDIG *zds = SCM_BDIGITS(z);
+ while (j--) zds[j] = 0;
+ do {
+ j = 0;
+ if (x[i]) {
+ do {
+ n += zds[i + j] + ((unsigned long) x[i] * y[j]);
+ zds[i + j++] = SCM_BIGLO(n);
+ n = SCM_BIGDN(n);
+ } while (j < ny);
+ if (n) {zds[i + j] = n; n = 0;}
+ }
+ } while (++i < nx);
+ return scm_normbig(z);
+}
+
+#ifdef __STDC__
+unsigned int
+scm_divbigdig(SCM_BIGDIG *ds, scm_sizet h, SCM_BIGDIG div)
+#else
+unsigned int
+scm_divbigdig(ds, h, div)
+ SCM_BIGDIG *ds;
+ scm_sizet h;
+ SCM_BIGDIG div;
+#endif
+{
+ register unsigned long t2 = 0;
+ while(h--) {
+ t2 = SCM_BIGUP(t2) + ds[h];
+ ds[h] = t2 / div;
+ t2 %= div;
+ }
+ return t2;
+}
+
+
+#ifdef __STDC__
+SCM
+scm_divbigint(SCM x, long z, int sgn, int mode)
+#else
+SCM
+scm_divbigint(x, z, sgn, mode)
+ SCM x;
+ long z;
+ int sgn;
+ int mode;
+#endif
+{
+ if (z < 0) z = -z;
+ if (z < SCM_BIGRAD) {
+ register unsigned long t2 = 0;
+ register SCM_BIGDIG *ds = SCM_BDIGITS(x);
+ scm_sizet nd = SCM_NUMDIGS(x);
+ while(nd--) t2 = (SCM_BIGUP(t2) + ds[nd]) % z;
+ if (mode) t2 = z - t2;
+ return SCM_MAKINUM(sgn ? -t2 : t2);
+ }
+ {
+#ifndef SCM_DIGSTOOBIG
+ unsigned long t2 = scm_pseudolong(z);
+ return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), (SCM_BIGDIG *)&t2,
+ SCM_DIGSPERLONG, sgn, mode);
+#else
+ SCM_BIGDIG t2[SCM_DIGSPERLONG];
+ scm_longdigs(z, t2);
+ return scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), t2, SCM_DIGSPERLONG, sgn, mode);
+#endif
+ }
+}
+
+#ifdef __STDC__
+SCM
+scm_divbigbig(SCM_BIGDIG *x, scm_sizet nx, SCM_BIGDIG *y, scm_sizet ny, int sgn, int modes)
+#else
+SCM
+scm_divbigbig(x, nx, y, ny, sgn, modes)
+ SCM_BIGDIG *x;
+ scm_sizet nx;
+ SCM_BIGDIG *y;
+ scm_sizet ny;
+ int sgn;
+ int modes;
+#endif
+{
+ /* modes description
+ 0 remainder
+ 1 scm_modulo
+ 2 quotient
+ 3 quotient but returns 0 if division is not exact. */
+ scm_sizet i = 0, j = 0;
+ long num = 0;
+ unsigned long t2 = 0;
+ SCM z, newy;
+ SCM_BIGDIG d = 0, qhat, *zds, *yds;
+ /* algorithm requires nx >= ny */
+ if (nx < ny)
+ switch (modes) {
+ case 0: /* remainder -- just return x */
+ z = scm_mkbig(nx, sgn); zds = SCM_BDIGITS(z);
+ do {zds[i] = x[i];} while (++i < nx);
+ return z;
+ case 1: /* scm_modulo -- return y-x */
+ z = scm_mkbig(ny, sgn); zds = SCM_BDIGITS(z);
+ do {
+ num += (long) y[i] - x[i];
+ if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;}
+ else {zds[i] = num; num = 0;}
+ } while (++i < nx);
+ while (i < ny) {
+ num += y[i];
+ if (num < 0) {zds[i++] = num + SCM_BIGRAD; num = -1;}
+ else {zds[i++] = num; num = 0;}
+ }
+ goto doadj;
+ case 2: return SCM_INUM0; /* quotient is zero */
+ case 3: return 0; /* the division is not exact */
+ }
+
+ z = scm_mkbig(nx==ny ? nx+2 : nx+1, sgn); zds = SCM_BDIGITS(z);
+ if (nx==ny) zds[nx+1] = 0;
+ while(!y[ny-1]) ny--; /* in case y came in as a psuedolong */
+ if (y[ny-1] < (SCM_BIGRAD>>1)) { /* normalize operands */
+ d = SCM_BIGRAD/(y[ny-1]+1);
+ newy = scm_mkbig(ny, 0); yds = SCM_BDIGITS(newy);
+ while(j < ny)
+ {t2 += (unsigned long) y[j]*d; yds[j++] = SCM_BIGLO(t2); t2 = SCM_BIGDN(t2);}
+ y = yds; j = 0; t2 = 0;
+ while(j < nx)
+ {t2 += (unsigned long) x[j]*d; zds[j++] = SCM_BIGLO(t2); t2 = SCM_BIGDN(t2);}
+ zds[j] = t2;
+ }
+ else {zds[j = nx] = 0; while (j--) zds[j] = x[j];}
+ j = nx==ny ? nx+1 : nx; /* dividend needs more digits than divisor */
+ do { /* loop over digits of quotient */
+ if (zds[j]==y[ny-1]) qhat = SCM_BIGRAD-1;
+ else qhat = (SCM_BIGUP(zds[j]) + zds[j-1])/y[ny-1];
+ if (!qhat) continue;
+ i = 0; num = 0; t2 = 0;
+ do { /* multiply and subtract */
+ t2 += (unsigned long) y[i] * qhat;
+ num += zds[j - ny + i] - SCM_BIGLO(t2);
+ if (num < 0) {zds[j - ny + i] = num + SCM_BIGRAD; num = -1;}
+ else {zds[j - ny + i] = num; num = 0;}
+ t2 = SCM_BIGDN(t2);
+ } while (++i < ny);
+ num += zds[j - ny + i] - t2; /* borrow from high digit; don't update */
+ while (num) { /* "add back" required */
+ i = 0; num = 0; qhat--;
+ do {
+ num += (long) zds[j - ny + i] + y[i];
+ zds[j - ny + i] = SCM_BIGLO(num);
+ num = SCM_BIGDN(num);
+ } while (++i < ny);
+ num--;
+ }
+ if (modes & 2) zds[j] = qhat;
+ } while (--j >= ny);
+ switch (modes) {
+ case 3: /* check that remainder==0 */
+ for(j = ny;j && !zds[j-1];--j) ; if (j) return 0;
+ case 2: /* move quotient down in z */
+ j = (nx==ny ? nx+2 : nx+1) - ny;
+ for (i = 0;i < j;i++) zds[i] = zds[i+ny];
+ ny = i;
+ break;
+ case 1: /* subtract for scm_modulo */
+ i = 0; num = 0; j = 0;
+ do {num += y[i] - zds[i];
+ j = j | zds[i];
+ if (num < 0) {zds[i] = num + SCM_BIGRAD; num = -1;}
+ else {zds[i] = num; num = 0;}
+ } while (++i < ny);
+ if (!j) return SCM_INUM0;
+ case 0: /* just normalize remainder */
+ if (d) scm_divbigdig(zds, ny, d);
+ }
+ doadj:
+ for(j = ny;j && !zds[j-1];--j) ;
+ if (j * SCM_BITSPERDIG <= sizeof(SCM)*SCM_CHAR_BIT)
+ if SCM_INUMP(z = scm_big2inum(z, j)) return z;
+ return scm_adjbig(z, j);
+}
+#endif
+
+
+
+
+
+/*** NUMBERS -> STRINGS ***/
+#ifdef SCM_FLOATS
+int scm_dblprec;
+static double fx[] = {0.0, 5e-1, 5e-2, 5e-3, 5e-4, 5e-5,
+ 5e-6, 5e-7, 5e-8, 5e-9, 5e-10,
+ 5e-11,5e-12,5e-13,5e-14,5e-15,
+ 5e-16,5e-17,5e-18,5e-19,5e-20};
+
+
+
+#ifdef __STDC__
+static scm_sizet
+idbl2str(double f, char *a)
+#else
+static scm_sizet
+idbl2str(f, a)
+ double f;
+ char *a;
+#endif
+{
+ int efmt, dpt, d, i, wp = scm_dblprec;
+ scm_sizet ch = 0;
+ int exp = 0;
+
+ if (f == 0.0) goto zero; /*{a[0]='0'; a[1]='.'; a[2]='0'; return 3;}*/
+ if (f < 0.0) {f = -f;a[ch++]='-';}
+ else if (f > 0.0) ;
+ else goto funny;
+ if (IS_INF(f))
+ {
+ if (ch == 0) a[ch++]='+';
+ funny: a[ch++]='#'; a[ch++]='.'; a[ch++]='#'; return ch;
+ }
+# ifdef DBL_MIN_10_EXP /* Prevent unnormalized values, as from
+ make-uniform-vector, from causing infinite loops. */
+ while (f < 1.0) {f *= 10.0; if (exp-- < DBL_MIN_10_EXP) goto funny;}
+ while (f > 10.0) {f *= 0.10; if (exp++ > DBL_MAX_10_EXP) goto funny;}
+# else
+ while (f < 1.0) {f *= 10.0; exp--;}
+ while (f > 10.0) {f /= 10.0; exp++;}
+# endif
+ if (f+fx[wp] >= 10.0) {f = 1.0; exp++;}
+ zero:
+# ifdef ENGNOT
+ dpt = (exp+9999)%3;
+ exp -= dpt++;
+ efmt = 1;
+# else
+ efmt = (exp < -3) || (exp > wp+2);
+ if (!efmt)
+ if (exp < 0) {
+ a[ch++] = '0';
+ a[ch++] = '.';
+ dpt = exp;
+ while (++dpt) a[ch++] = '0';
+ } else
+ dpt = exp+1;
+ else
+ dpt = 1;
+# endif
+
+ do {
+ d = f;
+ f -= d;
+ a[ch++] = d+'0';
+ if (f < fx[wp]) break;
+ if (f+fx[wp] >= 1.0) {
+ a[ch-1]++;
+ break;
+ }
+ f *= 10.0;
+ if (!(--dpt)) a[ch++] = '.';
+ } while (wp--);
+
+ if (dpt > 0)
+# ifndef ENGNOT
+ if ((dpt > 4) && (exp > 6)) {
+ d = (a[0]=='-'?2:1);
+ for (i = ch++; i > d; i--)
+ a[i] = a[i-1];
+ a[d] = '.';
+ efmt = 1;
+ } else
+# endif
+ {
+ while (--dpt) a[ch++] = '0';
+ a[ch++] = '.';
+ }
+ if (a[ch-1]=='.') a[ch++]='0'; /* trailing zero */
+ if (efmt && exp) {
+ a[ch++] = 'e';
+ if (exp < 0) {
+ exp = -exp;
+ a[ch++] = '-';
+ }
+ for (i = 10; i <= exp; i *= 10);
+ for (i /= 10; i; i /= 10) {
+ a[ch++] = exp/i + '0';
+ exp %= i;
+ }
+ }
+ return ch;
+}
+
+#ifdef __STDC__
+static scm_sizet
+iflo2str(SCM flt, char *str)
+#else
+static scm_sizet
+iflo2str(flt, str)
+ SCM flt;
+ char *str;
+#endif
+{
+ scm_sizet i;
+# ifdef SCM_SINGLES
+ if SCM_SINGP(flt) i = idbl2str(SCM_FLO(flt), str);
+ else
+# endif
+ i = idbl2str(SCM_REAL(flt), str);
+ if SCM_CPLXP(flt) {
+ if(0 <= SCM_IMAG(flt)) /* jeh */
+ str[i++] = '+'; /* jeh */
+ i += idbl2str(SCM_IMAG(flt), &str[i]);
+ str[i++] = 'i';
+ }
+ return i;
+}
+#endif /* SCM_FLOATS */
+
+#ifdef __STDC__
+scm_sizet
+scm_iint2str(long num, int rad, char *p)
+#else
+scm_sizet
+scm_iint2str(num, rad, p)
+ long num;
+ int rad;
+ char *p;
+#endif
+{
+ scm_sizet j;
+ register int i = 1, d;
+ register long n = num;
+ if (n < 0) {n = -n; i++;}
+ for (n /= rad;n > 0;n /= rad) i++;
+ j = i;
+ n = num;
+ if (n < 0) {n = -n; *p++ = '-'; i--;}
+ while (i--) {
+ d = n % rad;
+ n /= rad;
+ p[i] = d + ((d < 10) ? '0' : 'a' - 10);
+ }
+ return j;
+}
+
+
+#ifdef SCM_BIGDIG
+#ifdef __STDC__
+static SCM
+big2str(SCM b, register unsigned int radix)
+#else
+static SCM
+big2str(b, radix)
+ SCM b;
+ register unsigned int radix;
+#endif
+{
+ SCM t = scm_copybig(b, 0); /* sign of temp doesn't matter */
+ register SCM_BIGDIG *ds = SCM_BDIGITS(t);
+ scm_sizet i = SCM_NUMDIGS(t);
+ scm_sizet j = radix==16 ? (SCM_BITSPERDIG*i)/4+2
+ : radix >= 10 ? (SCM_BITSPERDIG*i*241L)/800+2
+ : (SCM_BITSPERDIG*i)+2;
+ scm_sizet k = 0;
+ scm_sizet radct = 0;
+ scm_sizet ch; /* jeh */
+ SCM_BIGDIG radpow = 1, radmod = 0;
+ SCM ss = scm_makstr((long)j, 0);
+ char *s = SCM_CHARS(ss), c;
+ while ((long) radpow * radix < SCM_BIGRAD) {
+ radpow *= radix;
+ radct++;
+ }
+ s[0] = scm_tc16_bigneg==SCM_TYP16(b) ? '-' : '+';
+ while ((i || radmod) && j) {
+ if (k == 0) {
+ radmod = (SCM_BIGDIG)scm_divbigdig(ds, i, radpow);
+ k = radct;
+ if (!ds[i-1]) i--;
+ }
+ c = radmod % radix; radmod /= radix; k--;
+ s[--j] = c < 10 ? c + '0' : c + 'a' - 10;
+ }
+ ch = s[0] == '-' ? 1 : 0; /* jeh */
+ if (ch < j) { /* jeh */
+ for(i = j;j < SCM_LENGTH(ss);j++) s[ch+j-i] = s[j]; /* jeh */
+ scm_vector_set_length_x(ss, (SCM)SCM_MAKINUM(ch+SCM_LENGTH(ss)-i)); /* jeh */
+ }
+ return ss;
+}
+#endif
+
+
+SCM_PROC(s_number_to_string, "number->string", 1, 1, 0, scm_number_to_string);
+#ifdef __STDC__
+SCM
+scm_number_to_string(SCM x, SCM radix)
+#else
+SCM
+scm_number_to_string(x, radix)
+ SCM x;
+ SCM radix;
+#endif
+{
+ if SCM_UNBNDP(radix) radix=SCM_MAKINUM(10L);
+ else SCM_ASSERT(SCM_INUMP(radix), radix, SCM_ARG2, s_number_to_string);
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+ char num_buf[SCM_FLOBUFLEN];
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) return big2str(x, (unsigned int)SCM_INUM(radix));
+# ifndef RECKLESS
+ if (!(SCM_INEXP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_number_to_string);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_INEXP(x), x, SCM_ARG1, s_number_to_string);
+# endif
+ return scm_makfromstr(num_buf, iflo2str(x, num_buf), 0);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_number_to_string);
+ return big2str(x, (unsigned int)SCM_INUM(radix));
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_number_to_string);
+# endif
+#endif
+ {
+ char num_buf[SCM_INTBUFLEN];
+ return scm_makfromstr(num_buf,
+ scm_iint2str(SCM_INUM(x), (int)SCM_INUM(radix), num_buf), 0);
+ }
+}
+
+
+/* These print routines are stubbed here so that scm_repl.c doesn't need
+ SCM_FLOATS or SCM_BIGDIGs conditionals */
+#ifdef __STDC__
+int
+scm_floprint(SCM sexp, SCM port, int writing)
+#else
+int
+scm_floprint(sexp, port, writing)
+ SCM sexp;
+ SCM port;
+ int writing;
+#endif
+{
+#ifdef SCM_FLOATS
+ char num_buf[SCM_FLOBUFLEN];
+ scm_gen_write (scm_regular_string, num_buf, iflo2str(sexp, num_buf), port);
+#else
+ scm_ipruk("float", sexp, port);
+#endif
+ return !0;
+}
+
+
+#ifdef __STDC__
+int
+scm_bigprint(SCM exp, SCM port, int writing)
+#else
+int
+scm_bigprint(exp, port, writing)
+ SCM exp;
+ SCM port;
+ int writing;
+#endif
+{
+#ifdef SCM_BIGDIG
+ exp = big2str(exp, (unsigned int)10);
+ scm_gen_write (scm_regular_string, SCM_CHARS(exp), (scm_sizet)SCM_LENGTH(exp), port);
+#else
+ scm_ipruk("bignum", exp, port);
+#endif
+ return !0;
+}
+/*** END nums->strs ***/
+
+/*** STRINGS -> NUMBERS ***/
+#ifdef SCM_BIGDIG
+#ifdef __STDC__
+SCM
+scm_istr2int(char *str, long len, long radix)
+#else
+SCM
+scm_istr2int(str, len, radix)
+ char *str;
+ long len;
+ long radix;
+#endif
+{
+ scm_sizet j;
+ register scm_sizet k, blen = 1;
+ scm_sizet i = 0;
+ int c;
+ SCM res;
+ register SCM_BIGDIG *ds;
+ register unsigned long t2;
+
+ if (0 >= len) return SCM_BOOL_F; /* zero scm_length */
+ if (16==radix) j = 1+(4*len*sizeof(char))/(SCM_BITSPERDIG);
+ else if (10 <= radix)
+ j = 1+(84*len*sizeof(char))/(SCM_BITSPERDIG*25);
+ else j = 1+(len*sizeof(char))/(SCM_BITSPERDIG);
+ switch (str[0]) { /* leading sign */
+ case '-':
+ case '+': if (++i==len) return SCM_BOOL_F; /* bad if lone `+' or `-' */
+ }
+ res = scm_mkbig(j, '-'==str[0]);
+ ds = SCM_BDIGITS(res);
+ for (k = j;k--;) ds[k] = 0;
+ do {
+ switch (c = str[i++]) {
+ case DIGITS:
+ c = c - '0';
+ goto accumulate;
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ c = c-'A'+10;
+ goto accumulate;
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ c = c-'a'+10;
+ accumulate:
+ if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */
+ k = 0;
+ t2 = c;
+ moretodo:
+ while(k < blen) {
+ /* printf("k = %d, blen = %d, t2 = %ld, ds[k] = %d\n", k, blen, t2, ds[k]);*/
+ t2 += ds[k]*radix;
+ ds[k++] = SCM_BIGLO(t2);
+ t2 = SCM_BIGDN(t2);
+ }
+ SCM_ASSERT(blen <= j, (SCM)SCM_MAKINUM(blen), SCM_OVSCM_FLOW, "bignum");
+ if (t2) {blen++; goto moretodo;}
+ break;
+ default:
+ return SCM_BOOL_F; /* not a digit */
+ }
+ } while (i < len);
+ if (blen * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM))
+ if SCM_INUMP(res = scm_big2inum(res, blen)) return res;
+ if (j==blen) return res;
+ return scm_adjbig(res, blen);
+}
+#else
+
+
+
+#ifdef __STDC__
+SCM
+scm_istr2int(char *str, long len, long radix)
+#else
+SCM
+scm_istr2int(str, len, radix)
+ char *str;
+ long len;
+ long radix;
+#endif
+{
+ register long n = 0, ln;
+ register int c;
+ register int i = 0;
+ int lead_neg = 0;
+ if (0 >= len) return SCM_BOOL_F; /* zero scm_length */
+ switch (*str) { /* leading sign */
+ case '-': lead_neg = 1;
+ case '+': if (++i==len) return SCM_BOOL_F; /* bad if lone `+' or `-' */
+ }
+
+ do {
+ switch (c = str[i++]) {
+ case DIGITS:
+ c = c - '0';
+ goto accumulate;
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ c = c-'A'+10;
+ goto accumulate;
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ c = c-'a'+10;
+ accumulate:
+ if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */
+ ln = n;
+ n = n * radix - c;
+ /* Negation is a workaround for HP700 cc bug */
+ if (n > ln || (-n > -SCM_MOST_NEGATIVE_FIXNUM)) goto ovfl;
+ break;
+ default:
+ return SCM_BOOL_F; /* not a digit */
+ }
+ } while (i < len);
+ if (!lead_neg) if ((n = -n) > SCM_MOST_POSITIVE_FIXNUM) goto ovfl;
+ return SCM_MAKINUM(n);
+ ovfl: /* overflow scheme integer */
+ return SCM_BOOL_F;
+}
+#endif
+
+#ifdef SCM_FLOATS
+#ifdef __STDC__
+SCM
+scm_istr2flo(char *str, long len, long radix)
+#else
+SCM
+scm_istr2flo(str, len, radix)
+ char *str;
+ long len;
+ long radix;
+#endif
+{
+ register int c, i = 0;
+ double lead_sgn;
+ double res = 0.0, tmp = 0.0;
+ int flg = 0;
+ int point = 0;
+ SCM second;
+
+ if (i >= len) return SCM_BOOL_F; /* zero scm_length */
+
+ switch (*str) { /* leading sign */
+ case '-': lead_sgn = -1.0; i++; break;
+ case '+': lead_sgn = 1.0; i++; break;
+ default : lead_sgn = 0.0;
+ }
+ if (i==len) return SCM_BOOL_F; /* bad if lone `+' or `-' */
+
+ if (str[i]=='i' || str[i]=='I') { /* handle `+i' and `-i' */
+ if (lead_sgn==0.0) return SCM_BOOL_F; /* must have leading sign */
+ if (++i < len) return SCM_BOOL_F; /* `i' not last character */
+ return scm_makdbl(0.0, lead_sgn);
+ }
+ do { /* check initial digits */
+ switch (c = str[i]) {
+ case DIGITS:
+ c = c - '0';
+ goto accum1;
+ case 'D': case 'E': case 'F':
+ if (radix==10) goto out1; /* must be exponent */
+ case 'A': case 'B': case 'C':
+ c = c-'A'+10;
+ goto accum1;
+ case 'd': case 'e': case 'f':
+ if (radix==10) goto out1;
+ case 'a': case 'b': case 'c':
+ c = c-'a'+10;
+ accum1:
+ if (c >= radix) return SCM_BOOL_F; /* bad digit for radix */
+ res = res * radix + c;
+ flg = 1; /* res is valid */
+ break;
+ default:
+ goto out1;
+ }
+ } while (++i < len);
+ out1:
+
+ /* if true, then we did see a digit above, and res is valid */
+ if (i==len) goto done;
+
+ /* By here, must have seen a digit,
+ or must have next char be a `.' with radix==10 */
+ if (!flg)
+ if (!(str[i]=='.' && radix==10))
+ return SCM_BOOL_F;
+
+ while (str[i]=='#') { /* optional sharps */
+ res *= radix;
+ if (++i==len) goto done;
+ }
+
+ if (str[i]=='/') {
+ while (++i < len) {
+ switch (c = str[i]) {
+ case DIGITS:
+ c = c - '0';
+ goto accum2;
+ case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+ c = c-'A'+10;
+ goto accum2;
+ case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+ c = c-'a'+10;
+ accum2:
+ if (c >= radix) return SCM_BOOL_F;
+ tmp = tmp * radix + c;
+ break;
+ default:
+ goto out2;
+ }
+ }
+ out2:
+ if (tmp==0.0) return SCM_BOOL_F; /* `slash zero' not allowed */
+ if (i < len)
+ while (str[i]=='#') { /* optional sharps */
+ tmp *= radix;
+ if (++i==len) break;
+ }
+ res /= tmp;
+ goto done;
+ }
+
+ if (str[i]=='.') { /* decimal point notation */
+ if (radix != 10) return SCM_BOOL_F; /* must be radix 10 */
+ while (++i < len) {
+ switch (c = str[i]) {
+ case DIGITS:
+ point--;
+ res = res*10.0 + c-'0';
+ flg = 1;
+ break;
+ default:
+ goto out3;
+ }
+ }
+ out3:
+ if (!flg) return SCM_BOOL_F; /* no digits before or after decimal point */
+ if (i==len) goto adjust;
+ while (str[i]=='#') { /* ignore remaining sharps */
+ if (++i==len) goto adjust;
+ }
+ }
+
+ switch (str[i]) { /* exponent */
+ case 'd': case 'D':
+ case 'e': case 'E':
+ case 'f': case 'F':
+ case 'l': case 'L':
+ case 's': case 'S': {
+ int expsgn = 1, expon = 0;
+ if (radix != 10) return SCM_BOOL_F; /* only in radix 10 */
+ if (++i==len) return SCM_BOOL_F; /* bad exponent */
+ switch (str[i]) {
+ case '-': expsgn=(-1);
+ case '+': if (++i==len) return SCM_BOOL_F; /* bad exponent */
+ }
+ if (str[i] < '0' || str[i] > '9') return SCM_BOOL_F; /* bad exponent */
+ do {
+ switch (c = str[i]) {
+ case DIGITS:
+ expon = expon*10 + c-'0';
+ if (expon > MAXEXP) return SCM_BOOL_F; /* exponent too large */
+ break;
+ default:
+ goto out4;
+ }
+ } while (++i < len);
+ out4:
+ point += expsgn*expon;
+ }
+ }
+
+ adjust:
+ if (point >= 0)
+ while (point--) res *= 10.0;
+ else
+# ifdef _UNICOS
+ while (point++) res *= 0.1;
+# else
+ while (point++) res /= 10.0;
+# endif
+
+ done:
+ /* at this point, we have a legitimate floating point result */
+ if (lead_sgn==-1.0) res = -res;
+ if (i==len) return scm_makdbl(res, 0.0);
+
+ if (str[i]=='i' || str[i]=='I') { /* pure imaginary number */
+ if (lead_sgn==0.0) return SCM_BOOL_F; /* must have leading sign */
+ if (++i < len) return SCM_BOOL_F; /* `i' not last character */
+ return scm_makdbl(0.0, res);
+ }
+
+ switch (str[i++]) {
+ case '-': lead_sgn = -1.0; break;
+ case '+': lead_sgn = 1.0; break;
+ case '@': { /* polar input for complex number */
+ /* get a `real' for scm_angle */
+ second = scm_istr2flo(&str[i], (long)(len-i), radix);
+ if (!(SCM_INEXP(second))) return SCM_BOOL_F; /* not `real' */
+ if (SCM_CPLXP(second)) return SCM_BOOL_F; /* not `real' */
+ tmp = SCM_REALPART(second);
+ return scm_makdbl(res*cos(tmp), res*sin(tmp));
+ }
+ default: return SCM_BOOL_F;
+ }
+
+ /* at this point, last char must be `i' */
+ if (str[len-1] != 'i' && str[len-1] != 'I') return SCM_BOOL_F;
+ /* handles `x+i' and `x-i' */
+ if (i==(len-1)) return scm_makdbl(res, lead_sgn);
+ /* get a `ureal' for complex part */
+ second = scm_istr2flo(&str[i], (long)((len-i)-1), radix);
+ if (!(SCM_INEXP(second))) return SCM_BOOL_F; /* not `ureal' */
+ if (SCM_CPLXP(second)) return SCM_BOOL_F; /* not `ureal' */
+ tmp = SCM_REALPART(second);
+ if (tmp < 0.0) return SCM_BOOL_F; /* not `ureal' */
+ return scm_makdbl(res, (lead_sgn*tmp));
+}
+#endif /* SCM_FLOATS */
+
+
+#ifdef __STDC__
+SCM
+scm_istring2number(char *str, long len, long radix)
+#else
+SCM
+scm_istring2number(str, len, radix)
+ char *str;
+ long len;
+ long radix;
+#endif
+{
+ int i = 0;
+ char ex = 0;
+ char ex_p = 0, rx_p = 0; /* Only allow 1 exactness and 1 radix prefix */
+ SCM res;
+ if (len==1)
+ if (*str=='+' || *str=='-') /* Catches lone `+' and `-' for speed */
+ return SCM_BOOL_F;
+
+ while ((len-i) >= 2 && str[i]=='#' && ++i)
+ switch (str[i++]) {
+ case 'b': case 'B': if (rx_p++) return SCM_BOOL_F; radix = 2; break;
+ case 'o': case 'O': if (rx_p++) return SCM_BOOL_F; radix = 8; break;
+ case 'd': case 'D': if (rx_p++) return SCM_BOOL_F; radix = 10; break;
+ case 'x': case 'X': if (rx_p++) return SCM_BOOL_F; radix = 16; break;
+ case 'i': case 'I': if (ex_p++) return SCM_BOOL_F; ex = 2; break;
+ case 'e': case 'E': if (ex_p++) return SCM_BOOL_F; ex = 1; break;
+ default: return SCM_BOOL_F;
+ }
+
+ switch (ex) {
+ case 1:
+ return scm_istr2int(&str[i], len-i, radix);
+ case 0:
+ res = scm_istr2int(&str[i], len-i, radix);
+ if SCM_NFALSEP(res) return res;
+#ifdef SCM_FLOATS
+ case 2: return scm_istr2flo(&str[i], len-i, radix);
+#endif
+ }
+ return SCM_BOOL_F;
+}
+
+
+SCM_PROC(s_string_to_number, "string->number", 1, 1, 0, scm_string_to_number);
+#ifdef __STDC__
+SCM
+scm_string_to_number(SCM str, SCM radix)
+#else
+SCM
+scm_string_to_number(str, radix)
+ SCM str;
+ SCM radix;
+#endif
+{
+ SCM answer;
+ if SCM_UNBNDP(radix) radix=SCM_MAKINUM(10L);
+ else SCM_ASSERT(SCM_INUMP(radix), radix, SCM_ARG2, s_string_to_number);
+ SCM_ASSERT(SCM_NIMP(str) && SCM_ROSTRINGP(str), str, SCM_ARG1, s_string_to_number);
+ answer = scm_istring2number(SCM_ROCHARS(str), SCM_ROLENGTH(str), SCM_INUM(radix));
+ return scm_return_first (answer, str);
+}
+/*** END strs->nums ***/
+
+#ifdef SCM_FLOATS
+#ifdef __STDC__
+SCM
+scm_makdbl (double x, double y)
+#else
+SCM
+scm_makdbl (x, y)
+ double x;
+ double y;
+#endif
+{
+ SCM z;
+ if ((y==0.0) && (x==0.0)) return scm_flo0;
+ SCM_NEWCELL(z);
+ SCM_DEFER_INTS;
+ if (y==0.0) {
+# ifdef SCM_SINGLES
+ float fx = x;
+# ifndef SCM_SINGLESONLY
+ if ((-FLTMAX < x) && (x < FLTMAX) && (fx==x))
+# endif
+ {
+ SCM_CAR(z) = scm_tc_flo;
+ SCM_FLO(z) = x;
+ SCM_ALLOW_INTS;
+ return z;
+ }
+# endif/* def SCM_SINGLES */
+ SCM_CDR(z) = (SCM)scm_must_malloc(1L*sizeof(double), "real");
+ SCM_CAR(z) = scm_tc_dblr;
+ }
+ else {
+ SCM_CDR(z) = (SCM)scm_must_malloc(2L*sizeof(double), "complex");
+ SCM_CAR(z) = scm_tc_dblc;
+ SCM_IMAG(z) = y;
+ }
+ SCM_REAL(z) = x;
+ SCM_ALLOW_INTS;
+ return z;
+}
+#endif
+
+
+#ifdef __STDC__
+SCM
+scm_bigequal(SCM x, SCM y)
+#else
+SCM
+scm_bigequal(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_BIGDIG
+ if (0==scm_bigcomp(x, y)) return SCM_BOOL_T;
+#endif
+ return SCM_BOOL_F;
+}
+
+
+#ifdef __STDC__
+SCM
+scm_floequal(SCM x, SCM y)
+#else
+SCM
+scm_floequal(x, y)
+ SCM x;
+ SCM y;
+#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_T;
+#endif
+ return SCM_BOOL_F;
+}
+
+
+
+
+SCM_PROC(s_number_p, "number?", 1, 0, 0, scm_number_p);
+SCM_PROC(s_complex_p, "complex?", 1, 0, 0, scm_number_p);
+#ifdef __STDC__
+SCM
+scm_number_p(SCM x)
+#else
+SCM
+scm_number_p(x)
+ SCM x;
+#endif
+{
+ if SCM_INUMP(x) return SCM_BOOL_T;
+#ifdef SCM_FLOATS
+ if (SCM_NIMP(x) && SCM_NUMP(x)) return SCM_BOOL_T;
+#else
+# ifdef SCM_BIGDIG
+ if (SCM_NIMP(x) && SCM_NUMP(x)) return SCM_BOOL_T;
+# endif
+#endif
+ return SCM_BOOL_F;
+}
+
+
+
+#ifdef SCM_FLOATS
+SCM_PROC(s_real_p, "real?", 1, 0, 0, scm_real_p);
+SCM_PROC(s_rational_p, "rational?", 1, 0, 0, scm_real_p);
+#ifdef __STDC__
+SCM
+scm_real_p(SCM x)
+#else
+SCM
+scm_real_p(x)
+ SCM x;
+#endif
+{
+ if (SCM_INUMP(x))
+ return SCM_BOOL_T;
+ if (SCM_IMP(x))
+ return SCM_BOOL_F;
+ if (SCM_REALP(x))
+ return SCM_BOOL_T;
+# ifdef SCM_BIGDIG
+ if (SCM_BIGP(x))
+ return SCM_BOOL_T;
+# endif
+ return SCM_BOOL_F;
+}
+
+
+
+SCM_PROC(s_int_p, "int?", 1, 0, 0, scm_int_p);
+#ifdef __STDC__
+SCM
+scm_int_p(SCM x)
+#else
+SCM
+scm_int_p(x)
+ SCM x;
+#endif
+{
+ double r;
+ if SCM_INUMP(x) return SCM_BOOL_T;
+ if SCM_IMP(x) return SCM_BOOL_F;
+# ifdef SCM_BIGDIG
+ if SCM_BIGP(x) return SCM_BOOL_T;
+# endif
+ if (!SCM_INEXP(x)) return SCM_BOOL_F;
+ if SCM_CPLXP(x) return SCM_BOOL_F;
+ r = SCM_REALPART(x);
+ if (r==floor(r)) return SCM_BOOL_T;
+ return SCM_BOOL_F;
+}
+
+
+
+#endif /* SCM_FLOATS */
+
+SCM_PROC(s_inexact_p, "inexact?", 1, 0, 0, scm_inexact_p);
+#ifdef __STDC__
+SCM
+scm_inexact_p(SCM x)
+#else
+SCM
+scm_inexact_p(x)
+ SCM x;
+#endif
+{
+#ifdef SCM_FLOATS
+ if (SCM_NIMP(x) && SCM_INEXP(x)) return SCM_BOOL_T;
+#endif
+ return SCM_BOOL_F;
+}
+
+
+
+
+SCM_PROC1 (s_eq_p, "=?", scm_tc7_rpsubr, scm_num_eq_p);
+#ifdef __STDC__
+SCM
+scm_num_eq_p (SCM x, SCM y)
+#else
+SCM
+scm_num_eq_p (x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_FLOATS
+ SCM t;
+ if SCM_NINUMP(x) {
+# ifdef SCM_BIGDIG
+# ifndef RECKLESS
+ if (!(SCM_NIMP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_eq_p);
+# endif
+ if SCM_BIGP(x) {
+ if SCM_INUMP(y) return SCM_BOOL_F;
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return (0==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+ bigreal:
+ return (SCM_REALP(y) && (scm_big2dbl(x)==SCM_REALPART(y))) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_INEXP(x), x, SCM_ARG1, s_eq_p);
+# endif
+ if SCM_INUMP(y) {t = x; x = y; y = t; goto realint;}
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {t = x; x = y; y = t; goto bigreal;}
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady);
+# endif
+ if (SCM_REALPART(x) != SCM_REALPART(y)) return SCM_BOOL_F;
+ if SCM_CPLXP(x)
+ return (SCM_CPLXP(y) && (SCM_IMAG(x)==SCM_IMAG(y))) ? SCM_BOOL_T : SCM_BOOL_F;
+ return SCM_CPLXP(y) ? SCM_BOOL_F : SCM_BOOL_T;
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return SCM_BOOL_F;
+# ifndef RECKLESS
+ if (!(SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_eq_p);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_eq_p);
+# endif
+# endif
+ realint:
+ return (SCM_REALP(y) && (((double)SCM_INUM(x))==SCM_REALPART(y))) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_eq_p);
+ if SCM_INUMP(y) return SCM_BOOL_F;
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return (0==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_eq_p);
+# endif
+ return SCM_BOOL_F;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_eq_p);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_eq_p);
+# endif
+#endif
+ return ((long)x==(long)y) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+
+
+SCM_PROC1 (s_less_p, "<?", scm_tc7_rpsubr, scm_less_p);
+#ifdef __STDC__
+SCM
+scm_less_p(SCM x, SCM y)
+#else
+SCM
+scm_less_p(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+# ifdef SCM_BIGDIG
+# ifndef RECKLESS
+ if (!(SCM_NIMP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_less_p);
+# endif
+ if SCM_BIGP(x) {
+ if SCM_INUMP(y) return SCM_BIGSIGN(x) ? SCM_BOOL_T : SCM_BOOL_F;
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return (1==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ SCM_ASRTGO(SCM_REALP(y), bady);
+ return (scm_big2dbl(x) < SCM_REALPART(y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+ SCM_ASRTGO(SCM_REALP(x), badx);
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_less_p);
+# endif
+ if (SCM_INUMP(y))
+ return (SCM_REALPART(x) < ((double)SCM_INUM(y))) ? SCM_BOOL_T : SCM_BOOL_F;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return (SCM_REALPART(x) < scm_big2dbl(y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ SCM_ASRTGO(SCM_REALP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_REALP(y), bady);
+# endif
+ return (SCM_REALPART(x) < SCM_REALPART(y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return SCM_BIGSIGN(y) ? SCM_BOOL_F : SCM_BOOL_T;
+# ifndef RECKLESS
+ if (!(SCM_REALP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_less_p);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_REALP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_less_p);
+# endif
+# endif
+ return (((double)SCM_INUM(x)) < SCM_REALPART(y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_less_p);
+ if SCM_INUMP(y) return SCM_BIGSIGN(x) ? SCM_BOOL_T : SCM_BOOL_F;
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return (1==scm_bigcomp(x, y)) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_less_p);
+# endif
+ return SCM_BIGSIGN(y) ? SCM_BOOL_F : SCM_BOOL_T;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_less_p);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_less_p);
+# endif
+#endif
+ return ((long)x < (long)y) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+
+SCM_PROC1 (s_gr_p, ">?", scm_tc7_rpsubr, scm_gr_p);
+#ifdef __STDC__
+SCM
+scm_gr_p(SCM x, SCM y)
+#else
+SCM
+scm_gr_p(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ return scm_less_p(y, x);
+}
+
+
+
+SCM_PROC1 (s_leq_p, "<=?", scm_tc7_rpsubr, scm_leq_p);
+#ifdef __STDC__
+SCM
+scm_leq_p(SCM x, SCM y)
+#else
+SCM
+scm_leq_p(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ return SCM_BOOL_NOT(scm_less_p(y, x));
+}
+
+
+
+SCM_PROC1 (s_geq_p, ">=?", scm_tc7_rpsubr, scm_geq_p);
+#ifdef __STDC__
+SCM
+scm_geq_p(SCM x, SCM y)
+#else
+SCM
+scm_geq_p(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ return SCM_BOOL_NOT(scm_less_p(x, y));
+}
+
+
+
+SCM_PROC(s_zero_p, "zero?", 1, 0, 0, scm_zero_p);
+#ifdef __STDC__
+SCM
+scm_zero_p(SCM z)
+#else
+SCM
+scm_zero_p(z)
+ SCM z;
+#endif
+{
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(z) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z), badz);
+ if SCM_BIGP(z) return SCM_BOOL_F;
+# ifndef RECKLESS
+ if (!(SCM_INEXP(z)))
+ badz: scm_wta(z, (char *)SCM_ARG1, s_zero_p);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_zero_p);
+# endif
+ return (z==scm_flo0) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(z) {
+ SCM_ASSERT(SCM_NIMP(z) && SCM_BIGP(z), z, SCM_ARG1, s_zero_p);
+ return SCM_BOOL_F;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(z), z, SCM_ARG1, s_zero_p);
+# endif
+#endif
+ return (z==SCM_INUM0) ? SCM_BOOL_T: SCM_BOOL_F;
+}
+
+
+
+SCM_PROC(s_positive_p, "positive?", 1, 0, 0, scm_positive_p);
+#ifdef __STDC__
+SCM
+scm_positive_p(SCM x)
+#else
+SCM
+scm_positive_p(x)
+ SCM x;
+#endif
+{
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) return SCM_TYP16(x)==scm_tc16_bigpos ? SCM_BOOL_T : SCM_BOOL_F;
+# ifndef RECKLESS
+ if (!(SCM_REALP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_positive_p);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_positive_p);
+# endif
+ return (SCM_REALPART(x) > 0.0) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_positive_p);
+ return SCM_TYP16(x)==scm_tc16_bigpos ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_positive_p);
+# endif
+#endif
+ return (x > SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+
+
+SCM_PROC(s_negative_p, "negative?", 1, 0, 0, scm_negative_p);
+#ifdef __STDC__
+SCM
+scm_negative_p(SCM x)
+#else
+SCM
+scm_negative_p(x)
+ SCM x;
+#endif
+{
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) return SCM_TYP16(x)==scm_tc16_bigpos ? SCM_BOOL_F : SCM_BOOL_T;
+# ifndef RECKLESS
+ if (!(SCM_REALP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_negative_p);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_negative_p);
+# endif
+ return (SCM_REALPART(x) < 0.0) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_negative_p);
+ return (SCM_TYP16(x)==scm_tc16_bigneg) ? SCM_BOOL_T : SCM_BOOL_F;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_negative_p);
+# endif
+#endif
+ return (x < SCM_INUM0) ? SCM_BOOL_T : SCM_BOOL_F;
+}
+
+
+SCM_PROC1 (s_max, "max", scm_tc7_asubr, scm_max);
+#ifdef __STDC__
+SCM
+scm_max(SCM x, SCM y)
+#else
+SCM
+scm_max(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_FLOATS
+ double z;
+#endif
+ if SCM_UNBNDP(y) {
+#ifndef RECKLESS
+ if (!(SCM_NUMBERP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_max);
+#endif
+ return x;
+ }
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) {
+ if SCM_INUMP(y) return SCM_BIGSIGN(x) ? y : x;
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return (1==scm_bigcomp(x, y)) ? y : x;
+ SCM_ASRTGO(SCM_REALP(y), bady);
+ z = scm_big2dbl(x);
+ return (z < SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0);
+ }
+ SCM_ASRTGO(SCM_REALP(x), badx);
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_max);
+# endif
+ if (SCM_INUMP(y))
+ return (SCM_REALPART(x) < (z = SCM_INUM(y))) ? scm_makdbl(z, 0.0) : x;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if (SCM_BIGP(y))
+ return (SCM_REALPART(x) < (z = scm_big2dbl(y))) ? scm_makdbl(z, 0.0) : x;
+ SCM_ASRTGO(SCM_REALP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_REALP(y), bady);
+# endif
+ return (SCM_REALPART(x) < SCM_REALPART(y)) ? y : x;
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return SCM_BIGSIGN(y) ? x : y;
+# ifndef RECKLESS
+ if (!(SCM_REALP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_max);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_REALP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_max);
+# endif
+# endif
+ return ((z = SCM_INUM(x)) < SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_max);
+ if SCM_INUMP(y) return SCM_BIGSIGN(x) ? y : x;
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return (1==scm_bigcomp(x, y)) ? y : x;
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_max);
+# endif
+ return SCM_BIGSIGN(y) ? x : y;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_max);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_max);
+# endif
+#endif
+ return ((long)x < (long)y) ? y : x;
+}
+
+
+
+
+SCM_PROC1 (s_min, "min", scm_tc7_asubr, scm_min);
+#ifdef __STDC__
+SCM
+scm_min(SCM x, SCM y)
+#else
+SCM
+scm_min(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_FLOATS
+ double z;
+#endif
+ if SCM_UNBNDP(y) {
+#ifndef RECKLESS
+ if (!(SCM_NUMBERP(x)))
+ badx:scm_wta(x, (char *)SCM_ARG1, s_min);
+#endif
+ return x;
+ }
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) {
+ if SCM_INUMP(y) return SCM_BIGSIGN(x) ? x : y;
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return (-1==scm_bigcomp(x, y)) ? y : x;
+ SCM_ASRTGO(SCM_REALP(y), bady);
+ z = scm_big2dbl(x);
+ return (z > SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0);
+ }
+ SCM_ASRTGO(SCM_REALP(x), badx);
+# else
+ SCM_ASSERT(SCM_NIMP(x) && SCM_REALP(x), x, SCM_ARG1, s_min);
+# endif
+ if SCM_INUMP(y) return (SCM_REALPART(x) > (z = SCM_INUM(y))) ? scm_makdbl(z, 0.0) : x;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return (SCM_REALPART(x) > (z = scm_big2dbl(y))) ? scm_makdbl(z, 0.0) : x;
+ SCM_ASRTGO(SCM_REALP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_REALP(y), bady);
+# endif
+ return (SCM_REALPART(x) > SCM_REALPART(y)) ? y : x;
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return SCM_BIGSIGN(y) ? y : x;
+# ifndef RECKLESS
+ if (!(SCM_REALP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_min);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_REALP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_min);
+# endif
+# endif
+ return ((z = SCM_INUM(x)) > SCM_REALPART(y)) ? y : scm_makdbl(z, 0.0);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_min);
+ if SCM_INUMP(y) return SCM_BIGSIGN(x) ? x : y;
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return (-1==scm_bigcomp(x, y)) ? y : x;
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_min);
+# endif
+ return SCM_BIGSIGN(y) ? y : x;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_min);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_min);
+# endif
+#endif
+ return ((long)x > (long)y) ? y : x;
+}
+
+
+
+
+SCM_PROC1 (s_sum, "+", scm_tc7_asubr, scm_sum);
+#ifdef __STDC__
+SCM
+scm_sum(SCM x, SCM y)
+#else
+SCM
+scm_sum(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ if SCM_UNBNDP(y) {
+ if SCM_UNBNDP(x) return SCM_INUM0;
+#ifndef RECKLESS
+ if (!(SCM_NUMBERP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_sum);
+#endif
+ return x;
+ }
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+ SCM t;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) {
+ if SCM_INUMP(y) {t = x; x = y; y = t; goto intbig;}
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {
+ if (SCM_NUMDIGS(x) > SCM_NUMDIGS(y)) {t = x; x = y; y = t;}
+ return scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0);
+ }
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+ bigreal: return scm_makdbl(scm_big2dbl(x)+SCM_REALPART(y), SCM_CPLXP(y)?SCM_IMAG(y):0.0);
+ }
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+# else
+ SCM_ASRTGO(SCM_NIMP(x) && SCM_INEXP(x), badx);
+# endif
+ if SCM_INUMP(y) {t = x; x = y; y = t; goto intreal;}
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {t = x; x = y; y = t; goto bigreal;}
+# ifndef RECKLESS
+ else if (!(SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_sum);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_sum);
+# endif
+# endif
+ { double i = 0.0;
+ if SCM_CPLXP(x) i = SCM_IMAG(x);
+ if SCM_CPLXP(y) i += SCM_IMAG(y);
+ return scm_makdbl(SCM_REALPART(x)+SCM_REALPART(y), i); }
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y)
+ intbig: {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(x));
+ return scm_addbig((SCM_BIGDIG *)&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0);
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0);
+# endif
+ }
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady);
+# endif
+ intreal: return scm_makdbl(SCM_INUM(x)+SCM_REALPART(y), SCM_CPLXP(y)?SCM_IMAG(y):0.0);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM t;
+ SCM_ASRTGO(SCM_NIMP(x) && SCM_BIGP(x), badx);
+ if SCM_INUMP(y) {t = x; x = y; y = t; goto intbig;}
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ if (SCM_NUMDIGS(x) > SCM_NUMDIGS(y)) {t = x; x = y; y = t;}
+ return scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0);
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_sum);
+# endif
+ intbig: {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(x));
+ return scm_addbig(&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0);
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0);
+# endif
+ }
+ }
+# else
+ SCM_ASRTGO(SCM_INUMP(x), badx);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_sum);
+# endif
+#endif
+ x = SCM_INUM(x)+SCM_INUM(y);
+ if SCM_FIXABLE(x) return SCM_MAKINUM(x);
+#ifdef SCM_BIGDIG
+ return scm_long2big(x);
+#else
+# ifdef SCM_FLOATS
+ return scm_makdbl((double)x, 0.0);
+# else
+ scm_wta(y, (char *)SCM_OVSCM_FLOW, s_sum);
+ return SCM_UNSPECIFIED;
+# endif
+#endif
+}
+
+
+
+
+SCM_PROC1 (s_difference, "-", scm_tc7_asubr, scm_difference);
+#ifdef __STDC__
+SCM
+scm_difference(SCM x, SCM y)
+#else
+SCM
+scm_difference(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_difference);
+# endif
+ if SCM_UNBNDP(y) {
+# ifdef SCM_BIGDIG
+ if SCM_BIGP(x) {
+ x = scm_copybig(x, !SCM_BIGSIGN(x));
+ return SCM_NUMDIGS(x) * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM) ?
+ scm_big2inum(x, SCM_NUMDIGS(x)) : x;
+ }
+# endif
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+ return scm_makdbl(-SCM_REALPART(x), SCM_CPLXP(x)?-SCM_IMAG(x):0.0);
+ }
+ if SCM_INUMP(y) return scm_sum(x, SCM_MAKINUM(-SCM_INUM(y)));
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(x) {
+ if SCM_BIGP(y) return (SCM_NUMDIGS(x) < SCM_NUMDIGS(y)) ?
+ scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0x0100) :
+ scm_addbig(SCM_BDIGITS(y), SCM_NUMDIGS(y), SCM_BIGSIGN(y) ^ 0x0100, x, 0);
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+ return scm_makdbl(scm_big2dbl(x)-SCM_REALPART(y), SCM_CPLXP(y)?-SCM_IMAG(y):0.0);
+ }
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+ if SCM_BIGP(y) return scm_makdbl(SCM_REALPART(x)-scm_big2dbl(y), SCM_CPLXP(x)?SCM_IMAG(x):0.0);
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+# else
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady);
+# endif
+ if SCM_CPLXP(x)
+ if SCM_CPLXP(y)
+ return scm_makdbl(SCM_REAL(x)-SCM_REAL(y), SCM_IMAG(x)-SCM_IMAG(y));
+ else
+ return scm_makdbl(SCM_REAL(x)-SCM_REALPART(y), SCM_IMAG(x));
+ return scm_makdbl(SCM_REALPART(x)-SCM_REALPART(y), SCM_CPLXP(y)?-SCM_IMAG(y):0.0);
+ }
+ if SCM_UNBNDP(y) {x = -SCM_INUM(x); goto checkx;}
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(x));
+ return scm_addbig((SCM_BIGDIG *)&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100);
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100);
+# endif
+ }
+# ifndef RECKLESS
+ if (!(SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_difference);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_difference);
+# endif
+# endif
+ return scm_makdbl(SCM_INUM(x)-SCM_REALPART(y), SCM_CPLXP(y)?-SCM_IMAG(y):0.0);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_difference);
+ if SCM_UNBNDP(y) {
+ x = scm_copybig(x, !SCM_BIGSIGN(x));
+ return SCM_NUMDIGS(x) * SCM_BITSPERDIG/SCM_CHAR_BIT <= sizeof(SCM) ?
+ scm_big2inum(x, SCM_NUMDIGS(x)) : x;
+ }
+ if SCM_INUMP(y) {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(y));
+ return scm_addbig(&z, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, x, 0);
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_addbig(zdigs, SCM_DIGSPERLONG, (y < 0) ? 0 : 0x0100, x, 0);
+# endif
+ }
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return (SCM_NUMDIGS(x) < SCM_NUMDIGS(y)) ?
+ scm_addbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BIGSIGN(x), y, 0x0100) :
+ scm_addbig(SCM_BDIGITS(y), SCM_NUMDIGS(y), SCM_BIGSIGN(y) ^ 0x0100, x, 0);
+ }
+ if SCM_UNBNDP(y) {x = -SCM_INUM(x); goto checkx;}
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_difference);
+# endif
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(x));
+ return scm_addbig(&z, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100);
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_addbig(zdigs, SCM_DIGSPERLONG, (x < 0) ? 0x0100 : 0, y, 0x0100);
+# endif
+ }
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_difference);
+ if SCM_UNBNDP(y) {x = -SCM_INUM(x); goto checkx;}
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_difference);
+# endif
+#endif
+ x = SCM_INUM(x)-SCM_INUM(y);
+ checkx:
+ if SCM_FIXABLE(x) return SCM_MAKINUM(x);
+#ifdef SCM_BIGDIG
+ return scm_long2big(x);
+#else
+# ifdef SCM_FLOATS
+ return scm_makdbl((double)x, 0.0);
+# else
+ scm_wta(y, (char *)SCM_OVSCM_FLOW, s_difference);
+ return SCM_UNSPECIFIED;
+# endif
+#endif
+}
+
+
+
+
+SCM_PROC1 (s_product, "*", scm_tc7_asubr, scm_product);
+#ifdef __STDC__
+SCM
+scm_product(SCM x, SCM y)
+#else
+SCM
+scm_product(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+ if SCM_UNBNDP(y) {
+ if SCM_UNBNDP(x) return SCM_MAKINUM(1L);
+#ifndef RECKLESS
+ if (!(SCM_NUMBERP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_product);
+#endif
+ return x;
+ }
+#ifdef SCM_FLOATS
+ if SCM_NINUMP(x) {
+ SCM t;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(x), badx);
+ if SCM_BIGP(x) {
+ if SCM_INUMP(y) {t = x; x = y; y = t; goto intbig;}
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return scm_mulbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y));
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+ bigreal: {
+ double bg = scm_big2dbl(x);
+ return scm_makdbl(bg*SCM_REALPART(y), SCM_CPLXP(y)?bg*SCM_IMAG(y):0.0); }
+ }
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+# else
+ SCM_ASRTGO(SCM_NIMP(x) && SCM_INEXP(x), badx);
+# endif
+ if SCM_INUMP(y) {t = x; x = y; y = t; goto intreal;}
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {t = x; x = y; y = t; goto bigreal;}
+# ifndef RECKLESS
+ else if (!(SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_product);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_product);
+# endif
+# endif
+ if SCM_CPLXP(x)
+ if SCM_CPLXP(y)
+ return scm_makdbl(SCM_REAL(x)*SCM_REAL(y)-SCM_IMAG(x)*SCM_IMAG(y),
+ SCM_REAL(x)*SCM_IMAG(y)+SCM_IMAG(x)*SCM_REAL(y));
+ else
+ return scm_makdbl(SCM_REAL(x)*SCM_REALPART(y), SCM_IMAG(x)*SCM_REALPART(y));
+ return scm_makdbl(SCM_REALPART(x)*SCM_REALPART(y),
+ SCM_CPLXP(y)?SCM_REALPART(x)*SCM_IMAG(y):0.0);
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {
+ intbig: if (SCM_INUM0==x) return x; if (SCM_MAKINUM(1L)==x) return y;
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(x));
+ return scm_mulbig((SCM_BIGDIG *)&z, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(y) ? (x>0) : (x<0));
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_mulbig(zdigs, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(y) ? (x>0) : (x<0));
+# endif
+ }
+ }
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady);
+# endif
+ intreal: return scm_makdbl(SCM_INUM(x)*SCM_REALPART(y), SCM_CPLXP(y)?SCM_INUM(x)*SCM_IMAG(y):0.0);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM_ASRTGO(SCM_NIMP(x) && SCM_BIGP(x), badx);
+ if SCM_INUMP(y) {SCM t = x; x = y; y = t; goto intbig;}
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ return scm_mulbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y));
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_product);
+# endif
+ intbig: if (SCM_INUM0==x) return x; if (SCM_MAKINUM(1L)==x) return y;
+ {
+# ifndef SCM_DIGSTOOBIG
+ long z = scm_pseudolong(SCM_INUM(x));
+ return scm_mulbig(&z, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(y) ? (x>0) : (x<0));
+# else
+ SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(SCM_INUM(x), zdigs);
+ return scm_mulbig(zdigs, SCM_DIGSPERLONG, SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(y) ? (x>0) : (x<0));
+# endif
+ }
+ }
+# else
+ SCM_ASRTGO(SCM_INUMP(x), badx);
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_product);
+# endif
+#endif
+ {
+ long i, j, k;
+ i = SCM_INUM(x);
+ if (0==i) return x;
+ j = SCM_INUM(y);
+ k = i * j;
+ y = SCM_MAKINUM(k);
+ if (k != SCM_INUM(y) || k/i != j)
+#ifdef SCM_BIGDIG
+ { int sgn = (i < 0) ^ (j < 0);
+# ifndef SCM_DIGSTOOBIG
+ i = scm_pseudolong(i);
+ j = scm_pseudolong(j);
+ return scm_mulbig((SCM_BIGDIG *)&i, SCM_DIGSPERLONG,
+ (SCM_BIGDIG *)&j, SCM_DIGSPERLONG, sgn);
+# else /* SCM_DIGSTOOBIG */
+ SCM_BIGDIG idigs[SCM_DIGSPERLONG];
+ SCM_BIGDIG jdigs[SCM_DIGSPERLONG];
+ scm_longdigs(i, idigs);
+ scm_longdigs(j, jdigs);
+ return scm_mulbig(idigs, SCM_DIGSPERLONG, jdigs, SCM_DIGSPERLONG, sgn);
+# endif
+ }
+#else
+# ifdef SCM_FLOATS
+ return scm_makdbl(((double)i)*((double)j), 0.0);
+# else
+ scm_wta(y, (char *)SCM_OVSCM_FLOW, s_product);
+# endif
+#endif
+ return y;
+ }
+}
+
+
+#ifdef __STDC__
+double
+scm_num2dbl (SCM a, char * why)
+#else
+double
+scm_num2dbl (a, why)
+ SCM a;
+ char * why;
+#endif
+{
+ if (SCM_INUMP (a))
+ return (double) SCM_INUM (a);
+#ifdef SCM_FLOATS
+ SCM_ASSERT (SCM_NIMP (a), a, "wrong type argument", why);
+ if (SCM_REALP (a))
+ return (SCM_REALPART (a));
+#endif
+#ifdef SCM_BIGDIG
+ return scm_big2dbl (a);
+#endif
+ SCM_ASSERT (0, a, "wrong type argument", why);
+ return SCM_UNSPECIFIED;
+}
+
+
+SCM_PROC(s_fuck, "fuck", 1, 0, 0, scm_fuck);
+#ifdef __STDC__
+SCM
+scm_fuck (SCM a)
+#else
+SCM
+scm_fuck (a)
+ SCM a;
+#endif
+{
+ return scm_makdbl (scm_num2dbl (a, "just because"), 0.0);
+}
+
+SCM_PROC1 (s_divide, "/", scm_tc7_asubr, scm_divide);
+#ifdef __STDC__
+SCM
+scm_divide(SCM x, SCM y)
+#else
+SCM
+scm_divide(x, y)
+ SCM x;
+ SCM y;
+#endif
+{
+#ifdef SCM_FLOATS
+ double d, r, i, a;
+ if SCM_NINUMP(x) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(x)))
+ badx: scm_wta(x, (char *)SCM_ARG1, s_divide);
+# endif
+ if SCM_UNBNDP(y) {
+# ifdef SCM_BIGDIG
+ if SCM_BIGP(x) return scm_makdbl(1.0/scm_big2dbl(x), 0.0);
+# endif
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+ if SCM_REALP(x) return scm_makdbl(1.0/SCM_REALPART(x), 0.0);
+ r = SCM_REAL(x); i = SCM_IMAG(x); d = r*r+i*i;
+ return scm_makdbl(r/d, -i/d);
+ }
+# ifdef SCM_BIGDIG
+ if SCM_BIGP(x) {
+ SCM z;
+ if SCM_INUMP(y) {
+ z = SCM_INUM(y);
+ SCM_ASSERT(z, y, SCM_OVSCM_FLOW, s_divide);
+ if (1==z) return x;
+ if (z < 0) z = -z;
+ if (z < SCM_BIGRAD) {
+ SCM w = scm_copybig(x, SCM_BIGSIGN(x) ? (y>0) : (y<0));
+ return scm_divbigdig(SCM_BDIGITS(w), SCM_NUMDIGS(w), (SCM_BIGDIG)z) ?
+ scm_makdbl(scm_big2dbl(x)/SCM_INUM(y), 0.0) : scm_normbig(w);
+ }
+# ifndef SCM_DIGSTOOBIG
+ z = scm_pseudolong(z);
+ z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), (SCM_BIGDIG *)&z, SCM_DIGSPERLONG,
+ SCM_BIGSIGN(x) ? (y>0) : (y<0), 3);
+# else
+ { SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(z, zdigs);
+ z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), zdigs, SCM_DIGSPERLONG,
+ SCM_BIGSIGN(x) ? (y>0) : (y<0), 3);}
+# endif
+ return z ? z : scm_makdbl(scm_big2dbl(x)/SCM_INUM(y), 0.0);
+ }
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {
+ z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y), 3);
+ return z ? z : scm_makdbl(scm_big2dbl(x)/scm_big2dbl(y), 0.0);
+ }
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+ if SCM_REALP(y) return scm_makdbl(scm_big2dbl(x)/SCM_REALPART(y), 0.0);
+ a = scm_big2dbl(x);
+ goto complex_div;
+ }
+# endif
+ SCM_ASRTGO(SCM_INEXP(x), badx);
+ if SCM_INUMP(y) {d = SCM_INUM(y); goto basic_div;}
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) {d = scm_big2dbl(y); goto basic_div;}
+ SCM_ASRTGO(SCM_INEXP(y), bady);
+# else
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_INEXP(y), bady);
+# endif
+ if SCM_REALP(y) {
+ d = SCM_REALPART(y);
+ basic_div: return scm_makdbl(SCM_REALPART(x)/d, SCM_CPLXP(x)?SCM_IMAG(x)/d:0.0);
+ }
+ a = SCM_REALPART(x);
+ if SCM_REALP(x) goto complex_div;
+ r = SCM_REAL(y); i = SCM_IMAG(y); d = r*r+i*i;
+ return scm_makdbl((a*r+SCM_IMAG(x)*i)/d, (SCM_IMAG(x)*r-a*i)/d);
+ }
+ if SCM_UNBNDP(y) {
+ if ((SCM_MAKINUM(1L)==x) || (SCM_MAKINUM(-1L)==x)) return x;
+ return scm_makdbl(1.0/((double)SCM_INUM(x)), 0.0);
+ }
+ if SCM_NINUMP(y) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(y), bady);
+ if SCM_BIGP(y) return scm_makdbl(SCM_INUM(x)/scm_big2dbl(y), 0.0);
+# ifndef RECKLESS
+ if (!(SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_divide);
+# endif
+# else
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_INEXP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_divide);
+# endif
+# endif
+ if (SCM_REALP(y))
+ return scm_makdbl(SCM_INUM(x)/SCM_REALPART(y), 0.0);
+ a = SCM_INUM(x);
+ complex_div:
+ r = SCM_REAL(y); i = SCM_IMAG(y); d = r*r+i*i;
+ return scm_makdbl((a*r)/d, (-a*i)/d);
+ }
+#else
+# ifdef SCM_BIGDIG
+ if SCM_NINUMP(x) {
+ SCM z;
+ SCM_ASSERT(SCM_NIMP(x) && SCM_BIGP(x), x, SCM_ARG1, s_divide);
+ if SCM_UNBNDP(y) goto ov;
+ if SCM_INUMP(y) {
+ z = SCM_INUM(y);
+ if (!z) goto ov;
+ if (1==z) return x;
+ if (z < 0) z = -z;
+ if (z < SCM_BIGRAD) {
+ SCM w = scm_copybig(x, SCM_BIGSIGN(x) ? (y>0) : (y<0));
+ if (scm_divbigdig(SCM_BDIGITS(w), SCM_NUMDIGS(w), (SCM_BIGDIG)z)) goto ov;
+ return w;
+ }
+# ifndef SCM_DIGSTOOBIG
+ z = scm_pseudolong(z);
+ z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), &z, SCM_DIGSPERLONG,
+ SCM_BIGSIGN(x) ? (y>0) : (y<0), 3);
+# else
+ { SCM_BIGDIG zdigs[SCM_DIGSPERLONG];
+ scm_longdigs(z, zdigs);
+ z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), zdigs, SCM_DIGSPERLONG,
+ SCM_BIGSIGN(x) ? (y>0) : (y<0), 3);}
+# endif
+ } else {
+ SCM_ASRTGO(SCM_NIMP(y) && SCM_BIGP(y), bady);
+ z = scm_divbigbig(SCM_BDIGITS(x), SCM_NUMDIGS(x), SCM_BDIGITS(y), SCM_NUMDIGS(y),
+ SCM_BIGSIGN(x) ^ SCM_BIGSIGN(y), 3);
+ }
+ if (!z) goto ov;
+ return z;
+ }
+ if SCM_UNBNDP(y) {
+ if ((SCM_MAKINUM(1L)==x) || (SCM_MAKINUM(-1L)==x)) return x;
+ goto ov;
+ }
+ if SCM_NINUMP(y) {
+# ifndef RECKLESS
+ if (!(SCM_NIMP(y) && SCM_BIGP(y)))
+ bady: scm_wta(y, (char *)SCM_ARG2, s_divide);
+# endif
+ goto ov;
+ }
+# else
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_divide);
+ if SCM_UNBNDP(y) {
+ if ((SCM_MAKINUM(1L)==x) || (SCM_MAKINUM(-1L)==x)) return x;
+ goto ov;
+ }
+ SCM_ASSERT(SCM_INUMP(y), y, SCM_ARG2, s_divide);
+# endif
+#endif
+ {
+ long z = SCM_INUM(y);
+ if ((0==z) || SCM_INUM(x)%z) goto ov;
+ z = SCM_INUM(x)/z;
+ if SCM_FIXABLE(z) return SCM_MAKINUM(z);
+#ifdef SCM_BIGDIG
+ return scm_long2big(z);
+#endif
+#ifdef SCM_FLOATS
+ ov: return scm_makdbl(((double)SCM_INUM(x))/((double)SCM_INUM(y)), 0.0);
+#else
+ ov: scm_wta(x, (char *)SCM_OVSCM_FLOW, s_divide);
+ return SCM_UNSPECIFIED;
+#endif
+ }
+}
+
+
+
+
+#ifdef SCM_FLOATS
+SCM_PROC1 (s_asinh, "$asinh", scm_tc7_cxr, (SCM (*)()) scm_asinh);
+#ifdef __STDC__
+double
+scm_asinh(double x)
+#else
+double
+scm_asinh(x)
+ double x;
+#endif
+{
+ return log(x+sqrt(x*x+1));
+}
+
+
+
+
+SCM_PROC1 (s_acosh, "$acosh", scm_tc7_cxr, (SCM (*)()) scm_acosh);
+#ifdef __STDC__
+double
+scm_acosh(double x)
+#else
+double
+scm_acosh(x)
+ double x;
+#endif
+{
+ return log(x+sqrt(x*x-1));
+}
+
+
+
+
+SCM_PROC1 (s_atanh, "$atanh", scm_tc7_cxr, (SCM (*)()) scm_atanh);
+#ifdef __STDC__
+double
+scm_atanh(double x)
+#else
+double
+scm_atanh(x)
+ double x;
+#endif
+{
+ return 0.5*log((1+x)/(1-x));
+}
+
+
+
+
+SCM_PROC1 (s_truncate, "truncate", scm_tc7_cxr, (SCM (*)()) scm_truncate);
+#ifdef __STDC__
+double
+scm_truncate(double x)
+#else
+double
+scm_truncate(x)
+ double x;
+#endif
+{
+ if (x < 0.0) return -floor(-x);
+ return floor(x);
+}
+
+
+
+SCM_PROC1 (s_round, "round", scm_tc7_cxr, (SCM (*)()) scm_round);
+#ifdef __STDC__
+double
+scm_round(double x)
+#else
+double
+scm_round(x)
+ double x;
+#endif
+{
+ double plus_half = x + 0.5;
+ double result = floor(plus_half);
+ /* Adjust so that the scm_round is towards even. */
+ return (plus_half == result && plus_half / 2 != floor(plus_half / 2))
+ ? result - 1 : result;
+}
+
+
+
+SCM_PROC1 (s_exact_to_inexact, "exact->inexact", scm_tc7_cxr, (SCM (*)()) scm_exact_to_inexact);
+#ifdef __STDC__
+double
+scm_exact_to_inexact(double z)
+#else
+double
+scm_exact_to_inexact(z)
+ double z;
+#endif
+{
+ return z;
+}
+
+
+SCM_PROC1 (s_i_floor, "floor", scm_tc7_cxr, (SCM (*)()) floor);
+SCM_PROC1 (s_i_ceil, "ceiling", scm_tc7_cxr, (SCM (*)()) ceil);
+SCM_PROC1 (s_i_sqrt, "$sqrt", scm_tc7_cxr, (SCM (*)())sqrt);
+SCM_PROC1 (s_i_abs, "$abs", scm_tc7_cxr, (SCM (*)())fabs);
+SCM_PROC1 (s_i_exp, "$exp", scm_tc7_cxr, (SCM (*)())exp);
+SCM_PROC1 (s_i_log, "$log", scm_tc7_cxr, (SCM (*)())log);
+SCM_PROC1 (s_i_sin, "$sin", scm_tc7_cxr, (SCM (*)())sin);
+SCM_PROC1 (s_i_cos, "$cos", scm_tc7_cxr, (SCM (*)())cos);
+SCM_PROC1 (s_i_tan, "$tan", scm_tc7_cxr, (SCM (*)())tan);
+SCM_PROC1 (s_i_asin, "$asin", scm_tc7_cxr, (SCM (*)())asin);
+SCM_PROC1 (s_i_acos, "$acos", scm_tc7_cxr, (SCM (*)())acos);
+SCM_PROC1 (s_i_atan, "$atan", scm_tc7_cxr, (SCM (*)())atan);
+SCM_PROC1 (s_i_sinh, "$sinh", scm_tc7_cxr, (SCM (*)())sinh);
+SCM_PROC1 (s_i_cosh, "$cosh", scm_tc7_cxr, (SCM (*)())cosh);
+SCM_PROC1 (s_i_tanh, "$tanh", scm_tc7_cxr, (SCM (*)())tanh);
+
+struct dpair {double x, y;};
+
+void scm_two_doubles(z1, z2, sstring, xy)
+ SCM z1, z2;
+ char *sstring;
+ struct dpair *xy;
+{
+ if SCM_INUMP(z1) xy->x = SCM_INUM(z1);
+ else {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z1), badz1);
+ if SCM_BIGP(z1) xy->x = scm_big2dbl(z1);
+ else {
+# ifndef RECKLESS
+ if (!(SCM_REALP(z1)))
+ badz1: scm_wta(z1, (char *)SCM_ARG1, sstring);
+# endif
+ xy->x = SCM_REALPART(z1);}
+# else
+ {SCM_ASSERT(SCM_NIMP(z1) && SCM_REALP(z1), z1, SCM_ARG1, sstring);
+ xy->x = SCM_REALPART(z1);}
+# endif
+ }
+ if SCM_INUMP(z2) xy->y = SCM_INUM(z2);
+ else {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z2), badz2);
+ if SCM_BIGP(z2) xy->y = scm_big2dbl(z2);
+ else {
+# ifndef RECKLESS
+ if (!(SCM_REALP(z2)))
+ badz2: scm_wta(z2, (char *)SCM_ARG2, sstring);
+# endif
+ xy->y = SCM_REALPART(z2);}
+# else
+ {SCM_ASSERT(SCM_NIMP(z2) && SCM_REALP(z2), z2, SCM_ARG2, sstring);
+ xy->y = SCM_REALPART(z2);}
+# endif
+ }
+}
+
+
+
+
+SCM_PROC(s_sys_expt, "%expt", 2, 0, 0, scm_sys_expt);
+#ifdef __STDC__
+SCM
+scm_sys_expt(SCM z1, SCM z2)
+#else
+SCM
+scm_sys_expt(z1, z2)
+ SCM z1;
+ SCM z2;
+#endif
+{
+ struct dpair xy;
+ scm_two_doubles(z1, z2, s_sys_expt, &xy);
+ return scm_makdbl(pow(xy.x, xy.y), 0.0);
+}
+
+
+
+SCM_PROC(s_sys_atan2, "%atan2", 2, 0, 0, scm_sys_atan2);
+#ifdef __STDC__
+SCM
+scm_sys_atan2(SCM z1, SCM z2)
+#else
+SCM
+scm_sys_atan2(z1, z2)
+ SCM z1;
+ SCM z2;
+#endif
+{
+ struct dpair xy;
+ scm_two_doubles(z1, z2, s_sys_atan2, &xy);
+ return scm_makdbl(atan2(xy.x, xy.y), 0.0);
+}
+
+
+
+SCM_PROC(s_make_rectangular, "make-rectangular", 2, 0, 0, scm_make_rectangular);
+#ifdef __STDC__
+SCM
+scm_make_rectangular(SCM z1, SCM z2)
+#else
+SCM
+scm_make_rectangular(z1, z2)
+ SCM z1;
+ SCM z2;
+#endif
+{
+ struct dpair xy;
+ scm_two_doubles(z1, z2, s_make_rectangular, &xy);
+ return scm_makdbl(xy.x, xy.y);
+}
+
+
+
+SCM_PROC(s_make_polar, "make-polar", 2, 0, 0, scm_make_polar);
+#ifdef __STDC__
+SCM
+scm_make_polar(SCM z1, SCM z2)
+#else
+SCM
+scm_make_polar(z1, z2)
+ SCM z1;
+ SCM z2;
+#endif
+{
+ struct dpair xy;
+ scm_two_doubles(z1, z2, s_make_polar, &xy);
+ return scm_makdbl(xy.x*cos(xy.y), xy.x*sin(xy.y));
+}
+
+
+
+
+SCM_PROC(s_real_part, "real-part", 1, 0, 0, scm_real_part);
+#ifdef __STDC__
+SCM
+scm_real_part(SCM z)
+#else
+SCM
+scm_real_part(z)
+ SCM z;
+#endif
+{
+ if SCM_NINUMP(z) {
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z), badz);
+ if SCM_BIGP(z) return z;
+# ifndef RECKLESS
+ if (!(SCM_INEXP(z)))
+ badz: scm_wta(z, (char *)SCM_ARG1, s_real_part);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_real_part);
+# endif
+ if SCM_CPLXP(z) return scm_makdbl(SCM_REAL(z), 0.0);
+ }
+ return z;
+}
+
+
+
+SCM_PROC(s_imag_part, "imag-part", 1, 0, 0, scm_imag_part);
+#ifdef __STDC__
+SCM
+scm_imag_part(SCM z)
+#else
+SCM
+scm_imag_part(z)
+ SCM z;
+#endif
+{
+ if SCM_INUMP(z) return SCM_INUM0;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z), badz);
+ if SCM_BIGP(z) return SCM_INUM0;
+# ifndef RECKLESS
+ if (!(SCM_INEXP(z)))
+ badz: scm_wta(z, (char *)SCM_ARG1, s_imag_part);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_imag_part);
+# endif
+ if SCM_CPLXP(z) return scm_makdbl(SCM_IMAG(z), 0.0);
+ return scm_flo0;
+}
+
+
+
+SCM_PROC(s_magnitude, "magnitude", 1, 0, 0, scm_magnitude);
+#ifdef __STDC__
+SCM
+scm_magnitude(SCM z)
+#else
+SCM
+scm_magnitude(z)
+ SCM z;
+#endif
+{
+ if SCM_INUMP(z) return scm_abs(z);
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z), badz);
+ if SCM_BIGP(z) return scm_abs(z);
+# ifndef RECKLESS
+ if (!(SCM_INEXP(z)))
+ badz: scm_wta(z, (char *)SCM_ARG1, s_magnitude);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_magnitude);
+# endif
+ if SCM_CPLXP(z)
+ {
+ double i = SCM_IMAG(z), r = SCM_REAL(z);
+ return scm_makdbl(sqrt(i*i+r*r), 0.0);
+ }
+ return scm_makdbl(fabs(SCM_REALPART(z)), 0.0);
+}
+
+
+
+
+SCM_PROC(s_angle, "angle", 1, 0, 0, scm_angle);
+#ifdef __STDC__
+SCM
+scm_angle(SCM z)
+#else
+SCM
+scm_angle(z)
+ SCM z;
+#endif
+{
+ double x, y = 0.0;
+ if SCM_INUMP(z) {x = (z>=SCM_INUM0) ? 1.0 : -1.0; goto do_angle;}
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z), badz);
+ if SCM_BIGP(z) {x = (SCM_TYP16(z)==scm_tc16_bigpos) ? 1.0 : -1.0; goto do_angle;}
+# ifndef RECKLESS
+ if (!(SCM_INEXP(z))) {
+ badz: scm_wta(z, (char *)SCM_ARG1, s_angle);}
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(z) && SCM_INEXP(z), z, SCM_ARG1, s_angle);
+# endif
+ if (SCM_REALP(z))
+ {
+ x = SCM_REALPART(z);
+ goto do_angle;
+ }
+ x = SCM_REAL(z); y = SCM_IMAG(z);
+ do_angle:
+ return scm_makdbl(atan2(y, x), 0.0);
+}
+
+
+SCM_PROC(s_inexact_to_exact, "inexact->exact", 1, 0, 0, scm_inexact_to_exact);
+#ifdef __STDC__
+SCM
+scm_inexact_to_exact(SCM z)
+#else
+SCM
+scm_inexact_to_exact(z)
+ SCM z;
+#endif
+{
+ if SCM_INUMP(z) return z;
+# ifdef SCM_BIGDIG
+ SCM_ASRTGO(SCM_NIMP(z), badz);
+ if SCM_BIGP(z) return z;
+# ifndef RECKLESS
+ if (!(SCM_REALP(z)))
+ badz: scm_wta(z, (char *)SCM_ARG1, s_inexact_to_exact);
+# endif
+# else
+ SCM_ASSERT(SCM_NIMP(z) && SCM_REALP(z), z, SCM_ARG1, s_inexact_to_exact);
+# endif
+# ifdef SCM_BIGDIG
+ {
+ double u = floor(SCM_REALPART(z)+0.5);
+ if ((u <= SCM_MOST_POSITIVE_FIXNUM) && (-u <= -SCM_MOST_NEGATIVE_FIXNUM)) {
+ /* Negation is a workaround for HP700 cc bug */
+ SCM ans = SCM_MAKINUM((long)u);
+ if (SCM_INUM(ans)==(long)u) return ans;
+ }
+ SCM_ASRTGO(!IS_INF(u), badz); /* problem? */
+ return scm_dbl2big(u);
+ }
+# else
+ return SCM_MAKINUM((long)floor(SCM_REALPART(z)+0.5));
+# endif
+}
+
+
+
+#else /* ~SCM_FLOATS */
+SCM_PROC(s_trunc, "truncate", 1, 0, 0, scm_trunc);
+#ifdef __STDC__
+SCM
+scm_trunc(SCM x)
+#else
+SCM
+scm_trunc(x)
+ SCM x;
+#endif
+{
+ SCM_ASSERT(SCM_INUMP(x), x, SCM_ARG1, s_truncate);
+ return x;
+}
+
+
+
+#endif /* SCM_FLOATS */
+
+#ifdef SCM_BIGDIG
+# ifdef SCM_FLOATS
+/* d must be integer */
+#ifdef __STDC__
+SCM
+scm_dbl2big(double d)
+#else
+SCM
+scm_dbl2big(d)
+ double d;
+#endif
+{
+ scm_sizet i = 0;
+ long c;
+ SCM_BIGDIG *digits;
+ SCM ans;
+ double u = (d < 0)?-d:d;
+ while (0 != floor(u)) {u /= SCM_BIGRAD;i++;}
+ ans = scm_mkbig(i, d < 0);
+ digits = SCM_BDIGITS(ans);
+ while (i--) {
+ u *= SCM_BIGRAD;
+ c = floor(u);
+ u -= c;
+ digits[i] = c;
+ }
+ SCM_ASSERT(0==u, SCM_INUM0, SCM_OVSCM_FLOW, "dbl2big");
+ return ans;
+}
+
+
+
+#ifdef __STDC__
+double
+scm_big2dbl(SCM b)
+#else
+double
+scm_big2dbl(b)
+ SCM b;
+#endif
+{
+ double ans = 0.0;
+ scm_sizet i = SCM_NUMDIGS(b);
+ SCM_BIGDIG *digits = SCM_BDIGITS(b);
+ while (i--) ans = digits[i] + SCM_BIGRAD*ans;
+ if (scm_tc16_bigneg==SCM_TYP16(b)) return -ans;
+ return ans;
+}
+# endif
+#endif
+
+#ifdef __STDC__
+SCM
+scm_long2num(long sl)
+#else
+SCM
+scm_long2num(sl)
+ long sl;
+#endif
+{
+ if (!SCM_FIXABLE(sl)) {
+#ifdef SCM_BIGDIG
+ return scm_long2big(sl);
+#else
+# ifdef SCM_FLOATS
+ return scm_makdbl((double) sl, 0.0);
+# else
+ return SCM_BOOL_F;
+# endif
+#endif
+ }
+ return SCM_MAKINUM(sl);
+}
+
+
+#ifdef LONGLONGS
+#ifdef __STDC__
+SCM
+scm_long_long2num(long_long sl)
+#else
+SCM
+scm_long_long2num(sl)
+ long_long sl;
+#endif
+{
+ if (!SCM_FIXABLE(sl)) {
+#ifdef SCM_BIGDIG
+ return scm_long_long2big(sl);
+#else
+# ifdef SCM_FLOATS
+ return scm_makdbl((double) sl, 0.0);
+# else
+ return SCM_BOOL_F;
+# endif
+#endif
+ }
+ return SCM_MAKINUM(sl);
+}
+#endif
+
+
+#ifdef __STDC__
+SCM
+scm_ulong2num(unsigned long sl)
+#else
+SCM
+scm_ulong2num(sl)
+ unsigned long sl;
+#endif
+{
+ if (!SCM_POSSCM_FIXABLE(sl)) {
+#ifdef SCM_BIGDIG
+ return scm_ulong2big(sl);
+#else
+# ifdef SCM_FLOATS
+ return scm_makdbl((double) sl, 0.0);
+# else
+ return SCM_BOOL_F;
+# endif
+#endif
+ }
+ return SCM_MAKINUM(sl);
+}
+
+#ifdef __STDC__
+long
+scm_num2long(SCM num, char *pos, char *s_caller)
+#else
+long
+scm_num2long(num, pos, s_caller)
+ SCM num;
+ char *pos;
+ char *s_caller;
+#endif
+{
+ long res;
+ if (SCM_INUMP(num))
+ {
+ res = SCM_INUM(num);
+ return res;
+ }
+ SCM_ASRTGO(SCM_NIMP(num), errout);
+#ifdef SCM_FLOATS
+ if (SCM_REALP(num))
+ {
+ double u = SCM_REALPART(num);
+ res = u;
+ if ((double)res == u)
+ {
+ return res;
+ }
+ }
+#endif
+#ifdef SCM_BIGDIG
+ if (SCM_BIGP(num)) {
+ long oldres;
+ scm_sizet l;
+ res = 0;
+ oldres = 0;
+ for(l = SCM_NUMDIGS(num);l--;)
+ {
+ res = SCM_BIGUP(res) + SCM_BDIGITS(num)[l];
+ if (res < oldres)
+ goto errout;
+ oldres = res;
+ }
+ if (SCM_TYP16 (num) == scm_tc16_bigpos)
+ return res;
+ else
+ return -res;
+ }
+#endif
+ errout: scm_wta(num, pos, s_caller);
+ return SCM_UNSPECIFIED;
+}
+
+
+
+
+#ifdef __STDC__
+long
+num2long(SCM num, char *pos, char *s_caller)
+#else
+long
+num2long(num, pos, s_caller)
+ SCM num;
+ char *pos;
+ char *s_caller;
+#endif
+{
+ long res;
+ if SCM_INUMP(num) {
+ res = SCM_INUM((long)num);
+ return res;
+ }
+ SCM_ASRTGO(SCM_NIMP(num), errout);
+#ifdef SCM_FLOATS
+ if SCM_REALP(num) {
+ double u = SCM_REALPART(num);
+ if (((SCM_MOST_NEGATIVE_FIXNUM * 4) <= u)
+ && (u <= (SCM_MOST_POSITIVE_FIXNUM * 4 + 3))) {
+ res = u;
+ return res;
+ }
+ }
+#endif
+#ifdef SCM_BIGDIG
+ if SCM_BIGP(num) {
+ scm_sizet l = SCM_NUMDIGS(num);
+ SCM_ASRTGO(SCM_DIGSPERLONG >= l, errout);
+ res = 0;
+ for(;l--;) res = SCM_BIGUP(res) + SCM_BDIGITS(num)[l];
+ return res;
+ }
+#endif
+ errout: scm_wta(num, pos, s_caller);
+ return SCM_UNSPECIFIED;
+}
+
+
+#ifdef LONGLONGS
+#ifdef __STDC__
+long_long
+scm_num2long_long(SCM num, char *pos, char *s_caller)
+#else
+long_long
+scm_num2long_long(num, pos, s_caller)
+ SCM num;
+ char *pos;
+ char *s_caller;
+#endif
+{
+ long_long res;
+ if SCM_INUMP(num) {
+ res = SCM_INUM((long_long)num);
+ return res;
+ }
+ SCM_ASRTGO(SCM_NIMP(num), errout);
+#ifdef SCM_FLOATS
+ if SCM_REALP(num) {
+ double u = SCM_REALPART(num);
+ if (((SCM_MOST_NEGATIVE_FIXNUM * 4) <= u)
+ && (u <= (SCM_MOST_POSITIVE_FIXNUM * 4 + 3))) {
+ res = u;
+ return res;
+ }
+ }
+#endif
+#ifdef SCM_BIGDIG
+ if SCM_BIGP(num) {
+ scm_sizet l = SCM_NUMDIGS(num);
+ SCM_ASRTGO(SCM_DIGSPERLONGLONG >= l, errout);
+ res = 0;
+ for(;l--;) res = SCM_LONGLONGSCM_BIGUP(res) + SCM_BDIGITS(num)[l];
+ return res;
+ }
+#endif
+ errout: scm_wta(num, pos, s_caller);
+ return SCM_UNSPECIFIED;
+}
+#endif
+
+
+#ifdef __STDC__
+unsigned long
+scm_num2ulong(SCM num, char *pos, char *s_caller)
+#else
+unsigned long
+scm_num2ulong(num, pos, s_caller)
+ SCM num;
+ char *pos;
+ char *s_caller;
+#endif
+{
+ unsigned long res;
+ if (SCM_INUMP(num))
+ {
+ res = SCM_INUM((unsigned long)num);
+ return res;
+ }
+ SCM_ASRTGO(SCM_NIMP(num), errout);
+#ifdef SCM_FLOATS
+ if (SCM_REALP(num))
+ {
+ double u = SCM_REALPART(num);
+ if ((0 <= u) && (u <= (unsigned long)~0L))
+ {
+ res = u;
+ return res;
+ }
+ }
+#endif
+#ifdef SCM_BIGDIG
+ if (SCM_BIGP(num)) {
+ unsigned long oldres;
+ scm_sizet l;
+ res = 0;
+ oldres = 0;
+ for(l = SCM_NUMDIGS(num);l--;)
+ {
+ res = SCM_BIGUP(res) + SCM_BDIGITS(num)[l];
+ if (res < oldres)
+ goto errout;
+ oldres = res;
+ }
+ return res;
+ }
+#endif
+ errout: scm_wta(num, pos, s_caller);
+ return SCM_UNSPECIFIED;
+}
+
+
+#ifdef SCM_FLOATS
+# ifndef DBL_DIG
+static void add1(f, fsum)
+ double f, *fsum;
+{
+ *fsum = f + 1.0;
+}
+# endif
+#endif
+
+
+#ifdef __STDC__
+void
+scm_init_numbers (void)
+#else
+void
+scm_init_numbers ()
+#endif
+{
+#ifdef SCM_FLOATS
+ SCM_NEWCELL(scm_flo0);
+# ifdef SCM_SINGLES
+ SCM_CAR(scm_flo0) = scm_tc_flo;
+ SCM_FLO(scm_flo0) = 0.0;
+# else
+ SCM_CDR(scm_flo0) = (SCM)scm_must_malloc(1L*sizeof(double), "real");
+ SCM_REAL(scm_flo0) = 0.0;
+ SCM_CAR(scm_flo0) = scm_tc_dblr;
+# endif
+# ifdef DBL_DIG
+ scm_dblprec = (DBL_DIG > 20) ? 20 : DBL_DIG;
+# else
+ { /* determine floating point precision */
+ double f = 0.1;
+ double fsum = 1.0+f;
+ while (fsum != 1.0) {
+ f /= 10.0;
+ if (++scm_dblprec > 20) break;
+ add1(f, &fsum);
+ }
+ scm_dblprec = scm_dblprec-1;
+ }
+# endif /* DBL_DIG */
+#endif
+#include "numbers.x"
+}
+