File Coverage

erfasrc/src/pxp.c
Criterion Covered Total %
statement 11 11 100.0
branch n/a
condition n/a
subroutine n/a
pod n/a
total 11 11 100.0


line stmt bran cond sub pod time code
1             #include "erfa.h"
2              
3 181           void eraPxp(double a[3], double b[3], double axb[3])
4             /*
5             ** - - - - - - -
6             ** e r a P x p
7             ** - - - - - - -
8             **
9             ** p-vector outer (=vector=cross) product.
10             **
11             ** Given:
12             ** a double[3] first p-vector
13             ** b double[3] second p-vector
14             **
15             ** Returned:
16             ** axb double[3] a x b
17             **
18             ** Note:
19             ** It is permissible to re-use the same array for any of the
20             ** arguments.
21             **
22             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
23             ** Derived, with permission, from the SOFA library. See notes at end of file.
24             */
25             {
26             double xa, ya, za, xb, yb, zb;
27              
28              
29 181           xa = a[0];
30 181           ya = a[1];
31 181           za = a[2];
32 181           xb = b[0];
33 181           yb = b[1];
34 181           zb = b[2];
35 181           axb[0] = ya*zb - za*yb;
36 181           axb[1] = za*xb - xa*zb;
37 181           axb[2] = xa*yb - ya*xb;
38              
39 181           return;
40              
41             }
42             /*----------------------------------------------------------------------
43             **
44             **
45             ** Copyright (C) 2013-2020, NumFOCUS Foundation.
46             ** All rights reserved.
47             **
48             ** This library is derived, with permission, from the International
49             ** Astronomical Union's "Standards of Fundamental Astronomy" library,
50             ** available from http://www.iausofa.org.
51             **
52             ** The ERFA version is intended to retain identical functionality to
53             ** the SOFA library, but made distinct through different function and
54             ** file names, as set out in the SOFA license conditions. The SOFA
55             ** original has a role as a reference standard for the IAU and IERS,
56             ** and consequently redistribution is permitted only in its unaltered
57             ** state. The ERFA version is not subject to this restriction and
58             ** therefore can be included in distributions which do not support the
59             ** concept of "read only" software.
60             **
61             ** Although the intent is to replicate the SOFA API (other than
62             ** replacement of prefix names) and results (with the exception of
63             ** bugs; any that are discovered will be fixed), SOFA is not
64             ** responsible for any errors found in this version of the library.
65             **
66             ** If you wish to acknowledge the SOFA heritage, please acknowledge
67             ** that you are using a library derived from SOFA, rather than SOFA
68             ** itself.
69             **
70             **
71             ** TERMS AND CONDITIONS
72             **
73             ** Redistribution and use in source and binary forms, with or without
74             ** modification, are permitted provided that the following conditions
75             ** are met:
76             **
77             ** 1 Redistributions of source code must retain the above copyright
78             ** notice, this list of conditions and the following disclaimer.
79             **
80             ** 2 Redistributions in binary form must reproduce the above copyright
81             ** notice, this list of conditions and the following disclaimer in
82             ** the documentation and/or other materials provided with the
83             ** distribution.
84             **
85             ** 3 Neither the name of the Standards Of Fundamental Astronomy Board,
86             ** the International Astronomical Union nor the names of its
87             ** contributors may be used to endorse or promote products derived
88             ** from this software without specific prior written permission.
89             **
90             ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
91             ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
92             ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
93             ** FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
94             ** COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
95             ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
96             ** BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
97             ** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
98             ** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
99             ** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
100             ** ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
101             ** POSSIBILITY OF SUCH DAMAGE.
102             **
103             */