1 /* Define aliases for libm double functions. 2 Copyright (C) 2017-2021 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_DOUBLE_H 20 #define _LIBM_ALIAS_DOUBLE_H 21 22 #include <bits/floatn.h> 23 24 #if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64 25 # define libm_alias_double_other_r_f64(from, to, r) \ 26 weak_alias (from ## r, to ## f64 ## r) 27 #else 28 # define libm_alias_double_other_r_f64(from, to, r) 29 #endif 30 31 #if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X 32 # define libm_alias_double_other_r_f32x(from, to, r) \ 33 weak_alias (from ## r, to ## f32x ## r) 34 #else 35 # define libm_alias_double_other_r_f32x(from, to, r) 36 #endif 37 38 /* Define _FloatN / _FloatNx aliases for a double libm function that 39 has internal name FROM ## R and public names TO ## suffix ## R for 40 each suffix of a supported _FloatN / _FloatNx floating-point type 41 with the same format as double. */ 42 #define libm_alias_double_other_r(from, to, r) \ 43 libm_alias_double_other_r_f64 (from, to, r); \ 44 libm_alias_double_other_r_f32x (from, to, r) 45 46 /* Likewise, but without the R suffix. */ 47 #define libm_alias_double_other(from, to) \ 48 libm_alias_double_other_r (from, to, ) 49 50 /* Define aliases for a double libm function that has internal name 51 FROM ## R and public names TO ## suffix ## R for each suffix of a 52 supported floating-point type with the same format as double. This 53 should only be used for functions where such public names exist for 54 _FloatN types, not for implementation-namespace exported names 55 (where there is one name per format, not per type) or for 56 obsolescent functions not provided for _FloatN types. */ 57 #ifdef NO_LONG_DOUBLE 58 # define libm_alias_double_r(from, to, r) \ 59 weak_alias (from ## r, to ## r) \ 60 strong_alias (from ## r, from ## l ## r) \ 61 weak_alias (from ## r, to ## l ## r); \ 62 libm_alias_double_other_r (from, to, r) 63 #else 64 # define libm_alias_double_r(from, to, r) \ 65 weak_alias (from ## r, to ## r); \ 66 libm_alias_double_other_r (from, to, r) 67 #endif 68 69 /* Likewise, but without the R suffix. */ 70 #define libm_alias_double(from, to) libm_alias_double_r (from, to, ) 71 72 #endif 73