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glibc  2.9
fpu_control.h
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00001 /* FPU control word definitions.  Stub version.
00002    Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #ifndef _FPU_CONTROL_H
00021 #define _FPU_CONTROL_H
00022 
00023 #define _FPU_RESERVED 0xffffffff    /* These bits are reserved and not changed.  */
00024 
00025 /* The fdlibm code requires no interrupts for exceptions.  Don't
00026    change the rounding mode, it would break long double I/O!  */
00027 #define _FPU_DEFAULT  0x00000000 /* Default value.  */
00028 
00029 /* Type of the control word.  */
00030 typedef unsigned int fpu_control_t;
00031 
00032 /* Macros for accessing the hardware control word.  */
00033 #define _FPU_GETCW(cw) 0
00034 #define _FPU_SETCW(cw) do { } while (0)
00035 
00036 /* Default control word set at startup.  */
00037 extern fpu_control_t __fpu_control;
00038 
00039 #endif /* _FPU_CONTROL_H */