(root)/
gcc-13.2.0/
libquadmath/
math/
finiteq.c
       1  /* s_finitel.c -- long double version of s_finite.c.
       2   * Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
       3   */
       4  
       5  /*
       6   * ====================================================
       7   * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
       8   *
       9   * Developed at SunPro, a Sun Microsystems, Inc. business.
      10   * Permission to use, copy, modify, and distribute this
      11   * software is freely granted, provided that this notice
      12   * is preserved.
      13   * ====================================================
      14   */
      15  
      16  #if defined(LIBM_SCCS) && !defined(lint)
      17  static char rcsid[] = "$NetBSD: $";
      18  #endif
      19  
      20  /*
      21   * finiteq(x) returns 1 is x is finite, else 0;
      22   * no branching!
      23   */
      24  
      25  #include "quadmath-imp.h"
      26  
      27  int finiteq(__float128 x)
      28  {
      29  	int64_t hx;
      30  	GET_FLT128_MSW64(hx,x);
      31  	return (int)((uint64_t)((hx&0x7fff000000000000LL)
      32  				-0x7fff000000000000LL)>>63);
      33  }