libgfortran/intrinsics/erf.c

   1 /* Wrapper for systems without the C99 erff() and erfcf() functions
   2    Copyright (C) 2004 Free Software Foundation, Inc.
   3
   4 This file is part of the GNU Fortran 95 runtime library (libgfortran).
   5
   6 Libgfortran is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU Lesser General Public
   8 License as published by the Free Software Foundation; either
   9 version 2.1 of the License, or (at your option) any later version.
  10
  11 Libgfortran is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU Lesser General Public License for more details.
  15
  16 You should have received a copy of the GNU Lesser General Public
  17 License along with libgfortran; see the file COPYING.LIB.  If not,
  18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #include "config.h"
  22 #include <math.h>
  23 #include "libgfortran.h"
  24
  25 #if HAVE_ERF && !HAVE_ERFF
  26 float
  27 erff (float x)
  28 {
  29   return (float) erf ((double) x);
  30 }
  31 #endif
  32
  33 #if HAVE_ERFC && !HAVE_ERFCF
  34 float
  35 erfcf (float x)
  36 {
  37   return (float) erfc ((double) x);
  38 }
  39 #endif