fenv_libc.h

来自「Glibc 2.3.2源代码(解压后有100多M)」· C头文件 代码 · 共 41 行

/* Copyright (C) 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Denis Joseph Barrow ([e-mail]).

   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.  */

#ifndef _FENV_LIBC_H
#define _FENV_LIBC_H    1

#include <fenv.h>

/* Definitions from asm/s390-regs-common.h that are needed in glibc.  */


#define FPC_EXCEPTION_MASK	0xF8000000
#define FPC_FLAGS_MASK		0x00F80000
#define FPC_DXC_MASK		0x0000FF00
#define FPC_RM_MASK		0x00000003
#define FPC_VALID_MASK		((FPC_EXCEPTION_MASK|FPC_FLAGS_MASK| \
				 FPC_DXC_MASK|FPC_RM_MASK))

#define FPC_EXCEPTION_MASK_SHIFT	24
#define FPC_FLAGS_SHIFT			16
#define FPC_DXC_SHIFT			8
#define FPC_NOT_FPU_EXCEPTION		0x300

#endif /* _FENV_LIBC_H */