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107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/*
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* c_pzasusb8 - print numerator as a string of USB8s
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*
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* Copyright (C) 1999-2004,2021-2023 Ernest Bowen
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*
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* Calc is open software; you can redistribute it and/or modify it under
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* the terms of the version 2.1 of the GNU Lesser General Public License
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* as published by the Free Software Foundation.
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*
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* Calc is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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* Public License for more details.
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*
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* A copy of version 2.1 of the GNU Lesser General Public License is
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* distributed with calc under the filename COPYING-LGPL. You should have
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* received a copy with calc; if not, write to Free Software Foundation, Inc.
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Under source code control: 1999/10/06 03:12:25
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* File existed as early as: 1999
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*
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* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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*/
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/*
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* ISO C requires a translation unit to contain at least one declaration,
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* so we declare a global variable whose value is based on if CUSTOM is defined.
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*/
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#if defined(CUSTOM)
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int c_pzasusb8_allowed = 1; /* CUSTOM defined */
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#else /* CUSTOM */
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int c_pzasusb8_allowed = 0; /* CUSTOM undefined */
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#endif /* CUSTOM */
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#if defined(CUSTOM)
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#include <stdio.h>
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#include "../have_const.h"
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#include "../value.h"
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#include "../custom.h"
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#include "../zmath.h"
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#include "../have_unused.h"
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#include "../errtbl.h"
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#include "../banned.h" /* include after system header <> includes */
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/*
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* c_pzasusb8 - print numerator as a string of USB8s
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*
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* given:
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* count = 1;
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* vals[0] real number;
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*
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* returns:
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* null
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*/
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/*ARGSUSED*/
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VALUE
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c_pzasusb8(char *UNUSED(name), int UNUSED(count), VALUE **vals)
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{
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VALUE result; /* what we will return */
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ZVALUE z; /* numerator of the value */
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long half_cnt; /* number of HALFs in the numerator */
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USB8 *h; /* octet pointer */
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long half_len; /* length of a half in octets */
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long i;
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long j;
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/*
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* arg check
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*/
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result.v_type = V_NULL;
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if (vals[0]->v_type != V_NUM) {
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math_error("Non-real argument for pzasusb8");
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not_reached();
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}
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/*
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* look at the numerator
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*/
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z = vals[0]->v_num->num;
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half_len = sizeof(HALF);
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half_cnt = z.len;
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/*
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* print the octets
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*/
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h = (USB8 *) z.v;
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for (i=0; i < half_cnt; ++i) {
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printf("%ld:\t", i);
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for (j=0; j < half_len; ++j) {
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printf("%02x", (int)(*h++));
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}
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putchar('\n');
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}
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return result;
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}
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#endif /* CUSTOM */
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