sysdeps/sparc/sparc32/soft-fp/q_cmpe.c

   1 /* Software floating-point emulation.
   2    Compare a and b, return float condition code.
   3    Signal exception (unless masked) if unordered.
   4    Copyright (C) 1997,1999 Free Software Foundation, Inc.
   5    This file is part of the GNU C Library.
   6    Contributed by Richard Henderson (rth@cygnus.com) and
   7                   Jakub Jelinek (jj@ultra.linux.cz).
   8
   9    The GNU C Library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Lesser General Public
  11    License as published by the Free Software Foundation; either
  12    version 2.1 of the License, or (at your option) any later version.
  13
  14    The GNU C Library is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17    Lesser General Public License for more details.
  18
  19    You should have received a copy of the GNU Lesser General Public
  20    License along with the GNU C Library; if not, write to the Free
  21    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  22    02111-1307 USA.  */
  23
  24 #include "soft-fp.h"
  25 #include "quad.h"
  26
  27 int _Q_cmpe(const long double a, const long double b)
  28 {
  29   FP_DECL_EX;
  30   FP_DECL_Q(A); FP_DECL_Q(B);
  31   int r;
  32
  33   FP_UNPACK_RAW_Q(A, a);
  34   FP_UNPACK_RAW_Q(B, b);
  35   FP_CMP_Q(r, B, A, 3);
  36   if (r == -1) r = 2;
  37   if (r == 3)
  38     FP_SET_EXCEPTION(FP_EX_INVALID);
  39   FP_HANDLE_EXCEPTIONS;
  40
  41   return r;
  42 }