1  /* Return the mantissa of a floating-point number.
       2     Copyright (C) 2018-2023 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  /*
      20   * significand(x) computes just
      21   * 	scalb(x, (FLOAT) - ilogb(x)),
      22   * for exercising the fraction-part(F) IEEE 754-1985 test vector.
      23   */
      24  
      25  #include <math.h>
      26  #include <math_private.h>
      27  
      28  FLOAT
      29  M_DECL_FUNC (__significand) (FLOAT x)
      30  {
      31    return M_SUF (__ieee754_scalb) (x,(FLOAT) - M_SUF (__ilogb) (x));
      32  }
      33  declare_mgen_alias (__significand, significand)