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Diffstat (limited to 'sysdeps/m68k/bits/nan.h')
-rw-r--r-- | sysdeps/m68k/bits/nan.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sysdeps/m68k/bits/nan.h b/sysdeps/m68k/bits/nan.h new file mode 100644 index 0000000000..b4efddfe91 --- /dev/null +++ b/sysdeps/m68k/bits/nan.h @@ -0,0 +1,59 @@ +/* `NAN' constants for m68k. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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. */ + +#ifndef _NAN_H + +#define _NAN_H 1 + +/* IEEE Not A Number. */ + +#ifdef __GNUC__ + +#define NAN \ + (__extension__ \ + ((union { unsigned long long __l; double __d; }) \ + { __l: 0x7fffffffffffffffULL }).__d) + +#define NANF \ + (__extension__ \ + ((union { unsigned long __l; float __f; }) \ + { __l: 0x7fffffffUL }).__f) + +#define NANL \ + (__extension__ \ + ((union { unsigned long __l[3]; long double __ld; }) \ + { __l: { 0x7fff0000UL, 0xffffffffUL, 0xffffffffUL } }).__ld) + +#else + +static union { unsigned char __c[8]; double __d; } __nan = + { { 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } }; +#define NAN (__nan.__d) + +static union { unsigned char __c[4]; float __f; } __nanf = + { { 0x7f, 0xff, 0xff, 0xff } }; +#define NANF (__nanf.__f) + +static union { unsigned char __c[12]; long double __ld; } __nanl = + { { 0x7f, 0xff, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } }; +#define NANL (__nanl.__ld) + +#endif /* GCC. */ + +#endif /* nan.h */ |