uclibc-ng/libm/w_remainder.c

/* Copyright (C) 2011-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@gmail.com>, 2011.

   The GNU C Library 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 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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 the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <math.h>
#include "math_private.h"

/* wrapper remainder */
double
remainder (double x, double y)
{
#if __UCLIBC_HAS_FENV__
  if (((__builtin_expect (y == 0.0, 0) && ! isnan (x))
       || (__builtin_expect (isinf (x), 0) && ! isnan (y)))
      && _LIB_VERSION != _IEEE_)
    return __kernel_standard (x, y, 28); /* remainder domain */
#endif /* __UCLIBC_HAS_FENV__ */
  return __ieee754_remainder (x, y);
}
strong_alias(remainder, drem)
libm_hidden_def(remainder)