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Diffstat (limited to 'sysdeps/generic/libm-alias-double.h')
| -rw-r--r-- | sysdeps/generic/libm-alias-double.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/sysdeps/generic/libm-alias-double.h b/sysdeps/generic/libm-alias-double.h new file mode 100644 index 0000000000..b97d2f8c36 --- /dev/null +++ b/sysdeps/generic/libm-alias-double.h @@ -0,0 +1,72 @@ +/* Define aliases for libm double functions. + Copyright (C) 2017-2018 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/>. */ + +#ifndef _LIBM_ALIAS_DOUBLE_H +#define _LIBM_ALIAS_DOUBLE_H + +#include <bits/floatn.h> + +#if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64 +# define libm_alias_double_other_r_f64(from, to, r) \ + weak_alias (from ## r, to ## f64 ## r) +#else +# define libm_alias_double_other_r_f64(from, to, r) +#endif + +#if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X +# define libm_alias_double_other_r_f32x(from, to, r) \ + weak_alias (from ## r, to ## f32x ## r) +#else +# define libm_alias_double_other_r_f32x(from, to, r) +#endif + +/* Define _FloatN / _FloatNx aliases for a double libm function that + has internal name FROM ## R and public names TO ## suffix ## R for + each suffix of a supported _FloatN / _FloatNx floating-point type + with the same format as double. */ +#define libm_alias_double_other_r(from, to, r) \ + libm_alias_double_other_r_f64 (from, to, r); \ + libm_alias_double_other_r_f32x (from, to, r) + +/* Likewise, but without the R suffix. */ +#define libm_alias_double_other(from, to) \ + libm_alias_double_other_r (from, to, ) + +/* Define aliases for a double libm function that has internal name + FROM ## R and public names TO ## suffix ## R for each suffix of a + supported floating-point type with the same format as double. This + should only be used for functions where such public names exist for + _FloatN types, not for implementation-namespace exported names + (where there is one name per format, not per type) or for + obsolescent functions not provided for _FloatN types. */ +#ifdef NO_LONG_DOUBLE +# define libm_alias_double_r(from, to, r) \ + weak_alias (from ## r, to ## r) \ + strong_alias (from ## r, from ## l ## r) \ + weak_alias (from ## r, to ## l ## r); \ + libm_alias_double_other_r (from, to, r) +#else +# define libm_alias_double_r(from, to, r) \ + weak_alias (from ## r, to ## r); \ + libm_alias_double_other_r (from, to, r) +#endif + +/* Likewise, but without the R suffix. */ +#define libm_alias_double(from, to) libm_alias_double_r (from, to, ) + +#endif |