Merge commit '7fde2daeed593684120d75de07598154f3ddaf2c' as 'ast'

1 files changed, 116 insertions, 0 deletions

diff --git a/ast/erfa/af2a.c b/ast/erfa/af2a.c
new file mode 100644
index 0000000..c75e40f
--- /dev/null
+++ b/ast/erfa/af2a.c
@@ -0,0 +1,116 @@
+#include "erfa.h"
+#include <stdlib.h>
+
+int eraAf2a(char s, int ideg, int iamin, double asec, double *rad)
+/*
+**  - - - - - - - -
+**   e r a A f 2 a
+**  - - - - - - - -
+**
+**  Convert degrees, arcminutes, arcseconds to radians.
+**
+**  Given:
+**     s         char    sign:  '-' = negative, otherwise positive
+**     ideg      int     degrees
+**     iamin     int     arcminutes
+**     asec      double  arcseconds
+**
+**  Returned:
+**     rad       double  angle in radians
+**
+**  Returned (function value):
+**               int     status:  0 = OK
+**                                1 = ideg outside range 0-359
+**                                2 = iamin outside range 0-59
+**                                3 = asec outside range 0-59.999...
+**
+**  Notes:
+**
+**  1)  The result is computed even if any of the range checks fail.
+**
+**  2)  Negative ideg, iamin and/or asec produce a warning status, but
+**      the absolute value is used in the conversion.
+**
+**  3)  If there are multiple errors, the status value reflects only the
+**      first, the smallest taking precedence.
+**
+**  Copyright (C) 2013-2014, NumFOCUS Foundation.
+**  Derived, with permission, from the SOFA library.  See notes at end of file.
+*/
+{
+
+/* Compute the interval. */
+   *rad  = ( s == '-' ? -1.0 : 1.0 ) *
+           ( 60.0 * ( 60.0 * ( (double) abs(ideg) ) +
+                             ( (double) abs(iamin) ) ) +
+                                        fabs(asec) ) * ERFA_DAS2R;
+
+/* Validate arguments and return status. */
+   if ( ideg < 0 || ideg > 359 ) return 1;
+   if ( iamin < 0 || iamin > 59 ) return 2;
+   if ( asec < 0.0 || asec >= 60.0 ) return 3;
+   return 0;
+
+}
+/*----------------------------------------------------------------------
+**  
+**  
+**  Copyright (C) 2013-2014, NumFOCUS Foundation.
+**  All rights reserved.
+**  
+**  This library is derived, with permission, from the International
+**  Astronomical Union's "Standards of Fundamental Astronomy" library,
+**  available from http://www.iausofa.org.
+**  
+**  The ERFA version is intended to retain identical functionality to
+**  the SOFA library, but made distinct through different function and
+**  file names, as set out in the SOFA license conditions.  The SOFA
+**  original has a role as a reference standard for the IAU and IERS,
+**  and consequently redistribution is permitted only in its unaltered
+**  state.  The ERFA version is not subject to this restriction and
+**  therefore can be included in distributions which do not support the
+**  concept of "read only" software.
+**  
+**  Although the intent is to replicate the SOFA API (other than
+**  replacement of prefix names) and results (with the exception of
+**  bugs;  any that are discovered will be fixed), SOFA is not
+**  responsible for any errors found in this version of the library.
+**  
+**  If you wish to acknowledge the SOFA heritage, please acknowledge
+**  that you are using a library derived from SOFA, rather than SOFA
+**  itself.
+**  
+**  
+**  TERMS AND CONDITIONS
+**  
+**  Redistribution and use in source and binary forms, with or without
+**  modification, are permitted provided that the following conditions
+**  are met:
+**  
+**  1 Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+**  
+**  2 Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in
+**    the documentation and/or other materials provided with the
+**    distribution.
+**  
+**  3 Neither the name of the Standards Of Fundamental Astronomy Board,
+**    the International Astronomical Union nor the names of its
+**    contributors may be used to endorse or promote products derived
+**    from this software without specific prior written permission.
+**  
+**  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+**  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+**  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+**  FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
+**  COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+**  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+**  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+**  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+**  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+**  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+**  ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+**  POSSIBILITY OF SUCH DAMAGE.
+**  
+*/