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fenv.h revision 1.2.20.2 
      1 /*	$NetBSD: fenv.h,v 1.2.20.2 2017/12/03 11:36:16 jdolecek Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  */
     29 
     30 #ifndef	_HPPA_FENV_H_
     31 #define	_HPPA_FENV_H_
     32 
     33 #include <sys/stdint.h>
     34 
     35 typedef unsigned fenv_t;
     36 typedef unsigned fexcept_t;
     37 
     38 #define	FE_INEXACT	0x01	/* imprecise (loss of precision) */
     39 #define	FE_UNDERFLOW	0x02	/* underflow exception */
     40 #define	FE_OVERFLOW	0x04	/* overflow exception */
     41 #define	FE_DIVBYZERO	0x08	/* divide-by-zero exception */
     42 #define	FE_INVALID	0x10	/* invalid operation exception */
     43 
     44 #define	FE_ALL_EXCEPT	0x1f
     45 
     46 #define	FE_TONEAREST	(0)	/* round to nearest representable number */
     47 #define	FE_TOWARDZERO	(1<<9)	/* round to zero (truncate) */
     48 #define	FE_UPWARD	(2<<9)	/* round toward positive infinity */
     49 #define	FE_DOWNWARD	(3<<9)	/* round toward negative infinity */
     50 
     51 
     52 __BEGIN_DECLS
     53 
     54 /* Default floating-point environment */
     55 extern const fenv_t	__fe_dfl_env;
     56 #define	FE_DFL_ENV	(&__fe_dfl_env)
     57 
     58 __END_DECLS
     59 
     60 #endif	/* !_HPPA_FENV_H_ */
     61