/usr/include/wcslib-5.18/wcsmath.h is in wcslib-dev 5.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | /*============================================================================
WCSLIB 5.18 - an implementation of the FITS WCS standard.
Copyright (C) 1995-2018, Mark Calabretta
This file is part of WCSLIB.
WCSLIB is free software: you can redistribute it and/or modify it under the
terms of the GNU Lesser General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
WCSLIB is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
more details.
You should have received a copy of the GNU Lesser General Public License
along with WCSLIB. If not, see http://www.gnu.org/licenses.
Direct correspondence concerning WCSLIB to mark@calabretta.id.au
Author: Mark Calabretta, Australia Telescope National Facility, CSIRO.
http://www.atnf.csiro.au/people/Mark.Calabretta
$Id: wcsmath.h,v 5.18 2018/01/10 08:32:14 mcalabre Exp $
*=============================================================================
*
* WCSLIB 5.18 - C routines that implement the FITS World Coordinate System
* (WCS) standard. Refer to the README file provided with WCSLIB for an
* overview of the library.
*
*
* Summary of wcsmath.h
* --------------------
* Definition of mathematical constants used by WCSLIB.
*
*===========================================================================*/
#ifndef WCSLIB_WCSMATH
#define WCSLIB_WCSMATH
#ifdef PI
#undef PI
#endif
#ifdef D2R
#undef D2R
#endif
#ifdef R2D
#undef R2D
#endif
#ifdef SQRT2
#undef SQRT2
#endif
#ifdef SQRT2INV
#undef SQRT2INV
#endif
#define PI 3.141592653589793238462643
#define D2R PI/180.0
#define R2D 180.0/PI
#define SQRT2 1.4142135623730950488
#define SQRT2INV 1.0/SQRT2
#ifdef UNDEFINED
#undef UNDEFINED
#endif
#define UNDEFINED 987654321.0e99
#define undefined(value) (value == UNDEFINED)
#endif /* WCSLIB_WCSMATH */
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