/* Floating-point remainder function. Copyright (C) 2023-2025 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 . */ #include #include #include #include "math_config.h" double __fmod (double x, double y) { uint64_t hx = asuint64 (x); uint64_t hy = asuint64 (y); /* fmod(+-Inf,y) or fmod(x,0) */ if (__glibc_unlikely ((is_inf (hx) || y == 0.0) && !is_nan (hy) && !is_nan (hx))) return __math_invalid (x); return __builtin_fmod (x, y); } strong_alias (__fmod, __ieee754_fmod) libm_alias_finite (__ieee754_fmod, __fmod) versioned_symbol (libm, __fmod, fmod, GLIBC_2_43); libm_alias_double_other (__fmod, fmod)