Update timezone code from tzcode 2018i.

[thirdparty/glibc.git] / sysdeps / ieee754 / flt-32 / s_totalordermagf.c

/* Total order operation on absolute values.  flt-32 version.
   Copyright (C) 2016-2018 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   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>
#include <libm-alias-float.h>
#include <nan-high-order-bit.h>
#include <stdint.h>

int
__totalordermagf (float x, float y)
{
  uint32_t ix, iy;
  GET_FLOAT_WORD (ix, x);
  GET_FLOAT_WORD (iy, y);
  ix &= 0x7fffffff;
  iy &= 0x7fffffff;
#if HIGH_ORDER_BIT_IS_SET_FOR_SNAN
  /* For the preferred quiet NaN convention, this operation is a
     comparison of the representations of the absolute values of the
     arguments.  If both arguments are NaNs, invert the
     quiet/signaling bit so comparing that way works.  */
  if (ix > 0x7f800000 && iy > 0x7f800000)
    {
      ix ^= 0x00400000;
      iy ^= 0x00400000;
    }
#endif
  return ix <= iy;
}
libm_alias_float (__totalordermag, totalordermag)