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- /* long double square root in software floating-point emulation.
- Copyright (C) 1997-2026 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <https://www.gnu.org/licenses/>. */
- #include <stdlib.h>
- #include <soft-fp/soft-fp.h>
- #include <soft-fp/quad.h>
- #include <libm-alias-finite.h>
- long double
- __ieee754_sqrtl (const long double a)
- {
- FP_DECL_EX;
- FP_DECL_Q (A); FP_DECL_Q (C);
- long double c;
- FP_INIT_ROUNDMODE;
- FP_UNPACK_Q (A, a);
- FP_SQRT_Q (C, A);
- FP_PACK_Q (c, C);
- FP_HANDLE_EXCEPTIONS;
- return c;
- }
- libm_alias_finite (__ieee754_sqrtl, __sqrtl)
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