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mpfr
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src/sgn.c
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Vincent Lefevre
Updated the "Contributed" lines.
02 фев 2025, 02:39
02 фев 2025, 02:39
a774f60
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/* mpfr_sgn -- Sign of a floating point number. Copyright 2003-2004, 2006-2025 Free Software Foundation, Inc. Contributed by the Pascaline and Caramba projects, INRIA. This file is part of the GNU MPFR Library. The GNU MPFR 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 3 of the License, or (at your option) any later version. The GNU MPFR 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 MPFR Library; see the file COPYING.LESSER. If not, see <https://www.gnu.org/licenses/>. */ #include "mpfr-impl.h" int (mpfr_sgn) (mpfr_srcptr a) { if (MPFR_UNLIKELY (MPFR_IS_SINGULAR (a))) { if (MPFR_LIKELY (MPFR_IS_ZERO (a))) return 0; if (MPFR_UNLIKELY (MPFR_IS_NAN (a))) { MPFR_SET_ERANGEFLAG (); return 0; } /* Remains infinity, handled by the return below. */ } return MPFR_INT_SIGN (a); }