1 /* long double square root in software floating-point emulation. 2 Copyright (C) 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 #include <stdlib.h> 20 #include <soft-fp/soft-fp.h> 21 #include <soft-fp/quad.h> 22 #include <libm-alias-finite.h> 23 24 long double __ieee754_sqrtl(const long double a)25__ieee754_sqrtl (const long double a) 26 { 27 FP_DECL_EX; 28 FP_DECL_Q (A); 29 FP_DECL_Q (C); 30 long double c; 31 32 FP_INIT_ROUNDMODE; 33 FP_UNPACK_Q (A, a); 34 FP_SQRT_Q (C, A); 35 FP_PACK_Q (c, C); 36 FP_HANDLE_EXCEPTIONS; 37 return c; 38 } 39 libm_alias_finite (__ieee754_sqrtl, __sqrtl) 40