1 /* Define aliases for libm _Float128 functions. 2 Copyright (C) 2018-2021 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 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _LIBM_ALIAS_FLOAT128_H 20 #define _LIBM_ALIAS_FLOAT128_H 21 22 #include <bits/floatn.h> 23 #include <ldbl-128ibm-compat-abi.h> 24 25 /* This macro should be used on all long double functions that are not part of 26 the _Float128 API in order to provide *ieee128 symbols without exposing 27 internal *f128 symbols. */ 28 #define libm_alias_float128_other_r_ldbl(from, to, r) \ 29 strong_alias (from ## f128 ## r, __ ## to ## ieee128 ## r) 30 31 /* Define _FloatN / _FloatNx aliases (other than that for _Float128) 32 for a _Float128 libm function that has internal name FROM ## f128 33 ## R and public names TO ## suffix ## R for each suffix of a 34 supported _FloatN / _FloatNx floating-point type with the same 35 format as _Float128. */ 36 #if __HAVE_FLOAT64X && !__HAVE_FLOAT64X_LONG_DOUBLE 37 # define libm_alias_float128_other_r(from, to, r) \ 38 weak_alias (from ## f128 ## r, to ## f64x ## r); \ 39 libm_alias_float128_other_r_ldbl(from, to, r) 40 #else 41 # define libm_alias_float128_other_r(from, to, r) \ 42 libm_alias_float128_other_r_ldbl(from, to, r) 43 #endif 44 45 /* Likewise, but without the R suffix. */ 46 #define libm_alias_float128_other(from, to) \ 47 libm_alias_float128_other_r (from, to, ) 48 49 /* Define aliases for a _Float128 libm function that has internal name 50 FROM ## f128 ## R and public names TO ## suffix ## R for each 51 suffix of a supported floating-point type with the same format as 52 _Float128. This should only be used for functions where such 53 public names exist for _FloatN types, not for 54 implementation-namespace exported names (where there is one name 55 per format, not per type) or for obsolescent functions not provided 56 for _FloatN types. */ 57 #define libm_alias_float128_r(from, to, r) \ 58 weak_alias (from ## f128 ## r, to ## f128 ## r); \ 59 libm_alias_float128_other_r (from, to, r) 60 61 /* Likewise, but without the R suffix. */ 62 #define libm_alias_float128(from, to) libm_alias_float128_r (from, to, ) 63 64 #endif 65