1 /*
2 * Copyright (c) 2008-2024 Stefan Krah. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <time.h>
31 #include <mpdecimal.h>
32
33
34 int
main(int argc,char ** argv)35 main(int argc, char **argv)
36 {
37 mpd_context_t ctx;
38 mpd_t *a, *b;
39 mpd_t *result;
40 char *rstring;
41 char status_str[MPD_MAX_FLAG_STRING];
42 clock_t start_clock, end_clock;
43
44 if (argc != 3) {
45 fprintf(stderr, "pow: usage: ./pow x y\n");
46 exit(1);
47 }
48
49 mpd_init(&ctx, 38);
50 ctx.traps = 0;
51
52 result = mpd_new(&ctx);
53 a = mpd_new(&ctx);
54 b = mpd_new(&ctx);
55 mpd_set_string(a, argv[1], &ctx);
56 mpd_set_string(b, argv[2], &ctx);
57
58 start_clock = clock();
59 mpd_pow(result, a, b, &ctx);
60 end_clock = clock();
61 fprintf(stderr, "time: %f\n\n",
62 (double)(end_clock-start_clock)/(double)CLOCKS_PER_SEC);
63
64 rstring = mpd_to_sci(result, 1);
65 mpd_snprint_flags(status_str, MPD_MAX_FLAG_STRING, ctx.status);
66 printf("%s %s\n", rstring, status_str);
67
68 mpd_del(a);
69 mpd_del(b);
70 mpd_del(result);
71 mpd_free(rstring);
72
73 return 0;
74 }
75
76
77