1 /*
2 * Copyright (c) 2008-2020 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 *
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <time.h>
32 #include <mpdecimal.h>
33
34
35 int
main(int argc,char ** argv)36 main(int argc, char **argv)
37 {
38 mpd_context_t ctx;
39 mpd_t *a;
40 mpd_t *result;
41 char *rstring;
42 char status_str[MPD_MAX_FLAG_STRING];
43 clock_t start_clock, end_clock;
44
45 if (argc != 2) {
46 fprintf(stderr, "sqrt: usage: ./sqrt x\n");
47 exit(1);
48 }
49
50 mpd_init(&ctx, 38);
51 ctx.traps = 0;
52
53 result = mpd_new(&ctx);
54 a = mpd_new(&ctx);
55 mpd_set_string(a, argv[1], &ctx);
56
57 start_clock = clock();
58 mpd_sqrt(result, a, &ctx);
59 end_clock = clock();
60 fprintf(stderr, "time: %f\n\n",
61 (double)(end_clock-start_clock)/(double)CLOCKS_PER_SEC);
62
63 rstring = mpd_to_sci(result, 1);
64 mpd_snprint_flags(status_str, MPD_MAX_FLAG_STRING, ctx.status);
65 printf("%s %s\n", rstring, status_str);
66
67 mpd_del(a);
68 mpd_del(result);
69 mpd_free(rstring);
70
71 return 0;
72 }
73
74
75