From abfbdde177c3a7155070dda1b2cdc8292054cc26 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Wed, 14 Jul 1999 00:54:57 +0000 Subject: Update. --- sysdeps/generic/s_nan.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 sysdeps/generic/s_nan.c (limited to 'sysdeps/generic/s_nan.c') diff --git a/sysdeps/generic/s_nan.c b/sysdeps/generic/s_nan.c new file mode 100644 index 0000000000..ff3b26855f --- /dev/null +++ b/sysdeps/generic/s_nan.c @@ -0,0 +1,44 @@ +/* Return quiet nan. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include +#include +#include +#include +#include + + +double +__nan (const char *tagp) +{ + if (tagp[0] != '\0') + { + char buf[6 + strlen (tagp)]; + sprintf (buf, "NAN(%s)", tagp); + return strtod (buf, NULL); + } + + return NAN; +} +weak_alias (__nan, nan) +#ifdef NO_LONG_DOUBLE +strong_alias (__nan, __nanl) +weak_alias (__nan, nanl) +#endif -- cgit v1.2.3