?? s_isnan.s
字號(hào):
/* Test for NaN Copyright (C) 2000, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Jes Sorensen <jes@linuxcare.com>, October 2000. 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *//* * isnan(x) returns 1 is x is nan, else 0; */#include <sysdep.h>#undef retENTRY (__isnan){.mfi fclass.m p6, p7 = farg0, @nat | @qnan | @snan ;;}{.mib(p6) mov ret0 = 1(p7) mov ret0 = 0 br.ret.sptk.many rp}END (__isnan)strong_alias (__isnan, __isnanf)strong_alias (__isnan, __isnanl)weak_alias (__isnan, isnan)weak_alias (__isnanf, isnanf)weak_alias (__isnanl, isnanl)hidden_def (__isnan)hidden_def (__isnanf)hidden_def (__isnanl)
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