1 /* Define aliases for libm float 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_FLOAT_H 20 #define _LIBM_ALIAS_FLOAT_H 21 22 #include <bits/floatn.h> 23 24 /* Define _FloatN / _FloatNx aliases for a float libm function that 25 has internal name FROM ## f ## R and public names TO ## suffix ## R 26 for each suffix of a supported _FloatN / _FloatNx floating-point 27 type with the same format as float. */ 28 #if __HAVE_FLOAT32 && !__HAVE_DISTINCT_FLOAT32 29 # define libm_alias_float_other_r(from, to, r) \ 30 weak_alias (from ## f ## r, to ## f32 ## r) 31 #else 32 # define libm_alias_float_other_r(from, to, r) 33 #endif 34 35 /* Likewise, but without the R suffix. */ 36 #define libm_alias_float_other(from, to) \ 37 libm_alias_float_other_r (from, to, ) 38 39 /* Define aliases for a float libm function that has internal name 40 FROM ## f ## R and public names TO ## suffix ## R for each suffix 41 of a supported floating-point type with the same format as float. 42 This should only be used for functions where such public names 43 exist for _FloatN types, not for implementation-namespace exported 44 names (where there is one name per format, not per type) or for 45 obsolescent functions not provided for _FloatN types. */ 46 #define libm_alias_float_r(from, to, r) \ 47 weak_alias (from ## f ## r, to ## f ## r); \ 48 libm_alias_float_other_r (from, to, r) 49 50 /* Likewise, but without the R suffix. */ 51 #define libm_alias_float(from, to) libm_alias_float_r (from, to, ) 52 53 #endif 54