basecvt.c
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上传日期:2007-01-12
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文件大小:3k
- /*
- * basecvt.c
- *
- * Convert integer values specified on the command line from one input
- * base to another. Accepts input and output bases between 2 and 36
- * inclusive.
- *
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the MPI Arbitrary Precision Integer Arithmetic
- * library.
- *
- * The Initial Developer of the Original Code is Michael J. Fromberger.
- * Portions created by Michael J. Fromberger are
- * Copyright (C) 1998, 1999, 2000 Michael J. Fromberger.
- * All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the GPL.
- *
- * $Id: basecvt.c,v 1.1 2000/07/14 00:44:53 nelsonb%netscape.com Exp $
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include "mpi.h"
- #define IBASE 10
- #define OBASE 16
- #define USAGE "Usage: %s ibase obase [value]n"
- #define MAXBASE 64
- #define MINBASE 2
- int main(int argc, char *argv[])
- {
- int ix, ibase = IBASE, obase = OBASE;
- mp_int val;
- ix = 1;
- if(ix < argc) {
- ibase = atoi(argv[ix++]);
-
- if(ibase < MINBASE || ibase > MAXBASE) {
- fprintf(stderr, "%s: input radix must be between %d and %d inclusiven",
- argv[0], MINBASE, MAXBASE);
- return 1;
- }
- }
- if(ix < argc) {
- obase = atoi(argv[ix++]);
- if(obase < MINBASE || obase > MAXBASE) {
- fprintf(stderr, "%s: output radix must be between %d and %d inclusiven",
- argv[0], MINBASE, MAXBASE);
- return 1;
- }
- }
- mp_init(&val);
- while(ix < argc) {
- char *out;
- int outlen;
- mp_read_radix(&val, argv[ix++], ibase);
- outlen = mp_radix_size(&val, obase);
- out = calloc(outlen, sizeof(char));
- mp_toradix(&val, out, obase);
- printf("%sn", out);
- free(out);
- }
- mp_clear(&val);
- return 0;
- }