| 1 | /* Define aliases for libm float functions. |
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| 2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
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| 3 | This file is part of the GNU C Library. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #ifndef _LIBM_ALIAS_FLOAT_H |
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| 20 | #define _LIBM_ALIAS_FLOAT_H |
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| 21 | |
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| 22 | #include <bits/floatn.h> |
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| 23 | |
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| 24 | /* Define _FloatN / _FloatNx aliases for a float libm function that |
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| 25 | has internal name FROM ## f ## R and public names TO ## suffix ## R |
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| 26 | for each suffix of a supported _FloatN / _FloatNx floating-point |
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| 27 | type with the same format as float. */ |
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| 28 | #if __HAVE_FLOAT32 && !__HAVE_DISTINCT_FLOAT32 |
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| 29 | # define libm_alias_float_other_r(from, to, r) \ |
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| 30 | weak_alias (from ## f ## r, to ## f32 ## r) |
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| 31 | #else |
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| 32 | # define libm_alias_float_other_r(from, to, r) |
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| 33 | #endif |
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| 34 | |
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| 35 | /* Likewise, but without the R suffix. */ |
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| 36 | #define libm_alias_float_other(from, to) \ |
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| 37 | libm_alias_float_other_r (from, to, ) |
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| 38 | |
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| 39 | /* Define aliases for a float libm function that has internal name |
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| 40 | FROM ## f ## R and public names TO ## suffix ## R for each suffix |
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| 41 | of a supported floating-point type with the same format as float. |
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| 42 | This should only be used for functions where such public names |
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| 43 | exist for _FloatN types, not for implementation-namespace exported |
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| 44 | names (where there is one name per format, not per type) or for |
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| 45 | obsolescent functions not provided for _FloatN types. */ |
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| 46 | #define libm_alias_float_r(from, to, r) \ |
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| 47 | weak_alias (from ## f ## r, to ## f ## r); \ |
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| 48 | libm_alias_float_other_r (from, to, r) |
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| 49 | |
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| 50 | /* Likewise, but without the R suffix. */ |
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| 51 | #define libm_alias_float(from, to) libm_alias_float_r (from, to, ) |
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| 52 | |
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| 53 | #endif |
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| 54 | |
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