1 /*============================================================================
2 WCSLIB 7.7 - an implementation of the FITS WCS standard.
3 Copyright (C) 1995-2021, Mark Calabretta
4
5 This file is part of WCSLIB.
6
7 WCSLIB is free software: you can redistribute it and/or modify it under the
8 terms of the GNU Lesser General Public License as published by the Free
9 Software Foundation, either version 3 of the License, or (at your option)
10 any later version.
11
12 WCSLIB is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
14 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
15 more details.
16
17 You should have received a copy of the GNU Lesser General Public License
18 along with WCSLIB. If not, see http://www.gnu.org/licenses.
19
20 Author: Mark Calabretta, Australia Telescope National Facility, CSIRO,
21 and: Michael Droetboom, Space Telescope Science Institute
22 http://www.atnf.csiro.au/people/Mark.Calabretta
23 $Id: twcscompare.c,v 7.7 2021/07/12 06:36:49 mcalabre Exp $
24 *=============================================================================
25 *
26 * Test wcscompare().
27 *
28 *---------------------------------------------------------------------------*/
29
30 #include <stdio.h>
31 #include <string.h>
32
33 #include <wcs.h>
34
35
main()36 int main()
37
38 {
39 int cmp, equal, status;
40 struct wcsprm a, b;
41
42 printf(
43 "Testing WCSLIB comparison routine (twcscompare.c)\n"
44 "-------------------------------------------------\n");
45
46 a.flag = -1;
47 b.flag = -1;
48 wcsini(1, 2, &a);
49 wcsini(1, 2, &b);
50
51 if ((status = wcscompare(0, 0.0, &a, &b, &equal))) {
52 printf("wcscompare ERROR %d: %s.\n", status, wcs_errmsg[status]);
53 return 1;
54 } else if (!equal) {
55 printf("FAIL: Equal wcsprms tested unequal.\n");
56 return 1;
57 }
58
59 strncpy(b.dateobs, "2014-01-01T00:00:00", 72);
60
61 if ((status = wcscompare(0, 0.0, &a, &b, &equal))) {
62 printf("wcscompare ERROR %d: %s.\n", status, wcs_errmsg[status]);
63 return 1;
64 } else if (equal) {
65 printf("FAIL: Unequal wcsprms tested equal.\n");
66 return 1;
67 }
68
69 if ((status = wcscompare(WCSCOMPARE_ANCILLARY, 0.0, &a, &b, &equal))) {
70 printf("wcscompare ERROR %d: %s.\n", status, wcs_errmsg[status]);
71 return 1;
72 } else if (!equal) {
73 printf("FAIL: Ancillary keyword not ignored.\n");
74 return 1;
75 }
76
77 b.crpix[0] = 12.5;
78 b.crpix[1] = 12.5;
79
80 if ((status = wcscompare(WCSCOMPARE_ANCILLARY, 0.0, &a, &b, &equal))) {
81 printf("wcscompare ERROR %d: %s.\n", status, wcs_errmsg[status]);
82 return 1;
83 } else if (equal) {
84 printf("FAIL: Unequal wcsprms tested equal.\n");
85 return 1;
86 }
87
88 cmp = WCSCOMPARE_ANCILLARY | WCSCOMPARE_TILING;
89 if ((status = wcscompare(cmp, 0.0, &a, &b, &equal))) {
90 printf("wcscompare ERROR %d: %s.\n", status, wcs_errmsg[status]);
91 return 1;
92 } else if (equal) {
93 printf("FAIL: Non-integral translation equates as a tiling.\n");
94 return 1;
95 }
96
97 cmp = WCSCOMPARE_ANCILLARY | WCSCOMPARE_CRPIX;
98 if ((status = wcscompare(cmp, 0.0, &a, &b, &equal))) {
99 printf("wcscompare ERROR %d: %s.\n", status, wcs_errmsg[status]);
100 return 1;
101 } else if (!equal) {
102 printf("FAIL: Translation not ignored.\n");
103 return 1;
104 }
105
106 printf("\nPASS: All comparisons returned as expected.\n");
107
108 wcsfree(&a);
109 wcsfree(&b);
110
111 return 0;
112 }
113