sysdeps/ieee754/ldbl-opt/libm-alias-double.h

   1 /* Define aliases for libm double functions.  ldbl-opt version.
   2    Copyright (C) 2017 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _LIBM_ALIAS_DOUBLE_H
  20 #define _LIBM_ALIAS_DOUBLE_H
  21
  22 #include <math_ldbl_opt.h>
  23 #include <first-versions.h>
  24 #include <ldbl-compat-choose.h>
  25
  26 /* Define _FloatN / _FloatNx aliases for a double libm function that
  27    has internal name FROM ## R and public names TO ## suffix ## R for
  28    each suffix of a supported _FloatN / _FloatNx floating-point type
  29    with the same format as double.  */
  30 #define libm_alias_double_other_r(from, to, r)
  31
  32 /* Likewise, but without the R suffix.  */
  33 #define libm_alias_double_other(from, to)       \
  34   libm_alias_double_other_r (from, to, )
  35
  36 /* Define aliases for a double libm function that has internal name
  37    FROM ## R and public names TO ## suffix ## R for each suffix of a
  38    supported floating-point type with the same format as double.  This
  39    should only be used for functions where such public names exist for
  40    _FloatN types, not for implementation-namespace exported names
  41    (where there is one name per format, not per type) or for
  42    obsolescent functions not provided for _FloatN types.  */
  43 #define libm_alias_double_r(from, to, r)                        \
  44   weak_alias (from ## r, to ## r)                               \
  45   LONG_DOUBLE_COMPAT_CHOOSE_libm_ ## to ## l ## r               \
  46     (compat_symbol (libm,                                       \
  47                     from ## r,                                  \
  48                     to ## l ## r,                               \
  49                     FIRST_VERSION_libm_ ## to ## l ## r), );    \
  50   libm_alias_double_other_r (from, to, r)
  51
  52 /* Likewise, but without the R suffix.  */
  53 #define libm_alias_double(from, to) libm_alias_double_r (from, to, )
  54
  55 #endif