1  /* Copyright (C) 2011-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public
       6     License as published by the Free Software Foundation; either
       7     version 2.1 of the License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; if not, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <math.h>
      19  #include <math_private.h>
      20  #include <math-svid-compat.h>
      21  #include <libm-alias-double.h>
      22  
      23  #if LIBM_SVID_COMPAT && SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_38)
      24  /* wrapper fmod */
      25  double
      26  __fmod_compat (double x, double y)
      27  {
      28    if (__builtin_expect (isinf (x) || y == 0.0, 0)
      29        && _LIB_VERSION != _IEEE_ && !isnan (y) && !isnan (x))
      30      /* fmod(+-Inf,y) or fmod(x,0) */
      31      return __kernel_standard (x, y, 27);
      32  
      33    return __ieee754_fmod (x, y);
      34  }
      35  compat_symbol (libm, __fmod_compat, fmod, GLIBC_2_0);
      36  # ifdef NO_LONG_DOUBLE
      37  weak_alias (__fmod_compat, fmodl)
      38  # endif
      39  # ifdef LONG_DOUBLE_COMPAT
      40  LONG_DOUBLE_COMPAT_CHOOSE_libm_fmodl (
      41    compat_symbol (libm, __fmod_compat, fmodl, FIRST_VERSION_libm_fmodl), );
      42  # endif
      43  #endif