1 /* Define aliases for libm long double functions. ldbl-opt version. 2 Copyright (C) 2017-2022 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_LDOUBLE_H 20 #define _LIBM_ALIAS_LDOUBLE_H 21 22 #include <bits/floatn.h> 23 #include <math_ldbl_opt.h> 24 #include <ldbl-compat-choose.h> 25 26 #if __HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128 27 # define libm_alias_ldouble_other_r_f128(from, to, r) \ 28 weak_alias (from ## l ## r, to ## f128 ## r) 29 #else 30 # define libm_alias_ldouble_other_r_f128(from, to, r) 31 #endif 32 33 #if __HAVE_FLOAT64X_LONG_DOUBLE 34 # define libm_alias_ldouble_other_r_f64x(from, to, r) \ 35 weak_alias (from ## l ## r, to ## f64x ## r) 36 #else 37 # define libm_alias_ldouble_other_r_f64x(from, to, r) 38 #endif 39 40 /* Define _FloatN / _FloatNx aliases for a long double libm function 41 that has internal name FROM ## l ## R and public names TO ## suffix 42 ## R for each suffix of a supported _FloatN / _FloatNx 43 floating-point type with the same format as long double. */ 44 #define libm_alias_ldouble_other_r(from, to, r) \ 45 libm_alias_ldouble_other_r_f128 (from, to, r); \ 46 libm_alias_ldouble_other_r_f64x (from, to, r) 47 48 /* Likewise, but without the R suffix. */ 49 #define libm_alias_ldouble_other(from, to) \ 50 libm_alias_ldouble_other_r (from, to, ) 51 52 /* Define aliases for a long double libm function that has internal 53 name FROM ## l ## R and public names TO ## suffix ## R for each 54 suffix of a supported floating-point type with the same format as 55 long double. This should only be used for functions where such 56 public names exist for _FloatN types, not for 57 implementation-namespace exported names (where there is one name 58 per format, not per type) or for obsolescent functions not provided 59 for _FloatN types. */ 60 #define libm_alias_ldouble_r(from, to, r) \ 61 LONG_DOUBLE_COMPAT_CHOOSE_libm_ ## to ## l ## r \ 62 (long_double_symbol (libm, from ## l ## r, to ## l ## r), \ 63 weak_alias (from ## l ## r, to ## l ## r)); \ 64 libm_alias_ldouble_other_r (from, to, r) 65 66 /* Likewise, but without the R suffix. */ 67 #define libm_alias_ldouble(from, to) libm_alias_ldouble_r (from, to, ) 68 69 #endif 70