ieeefp.h revision 1.8
1/*	$NetBSD: ieeefp.h,v 1.8 2012/03/20 23:57:57 christos Exp $	*/
2
3/*
4 * Written by J.T. Conklin, Apr 6, 1995
5 * Public domain.
6 */
7
8#ifndef _SPARC_IEEEFP_H_
9#define _SPARC_IEEEFP_H_
10
11#include <sys/featuretest.h>
12
13#if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
14
15#define	FE_INEXACT	0x01	/* imprecise (loss of precision) */
16#define	FE_DIVBYZERO	0x02	/* divide-by-zero exception */
17#define	FE_UNDERFLOW	0x04	/* overflow exception */
18#define	FE_OVERFLOW	0x08	/* underflow exception */
19#define	FE_INVALID	0x10	/* invalid operation exception */
20
21#define	FE_ALL_EXCEPT	0x1f
22
23#define	FE_TONEAREST	0	/* round to nearest representable number */
24#define	FE_TOWARDZERO	1	/* round to zero (truncate) */
25#define	FE_UPWARD	2	/* round toward positive infinity */
26#define	FE_DOWNWARD	3	/* round toward negative infinity */
27
28#if !defined(_ISOC99_SOURCE)
29
30typedef unsigned int fp_except;
31#define FP_X_IMP	FE_INEXACT	/* imprecise (loss of precision) */
32#define FP_X_DZ		FE_DIVBYZERO	/* divide-by-zero exception */
33#define FP_X_UFL	FE_UNDERFLOW	/* underflow exception */
34#define FP_X_OFL	FE_OVERFLOW	/* overflow exception */
35#define FP_X_INV	FE_INVALID	/* invalid operation exception */
36
37typedef enum {
38    FP_RN=FE_TONEAREST,		/* round to nearest representable number */
39    FP_RZ=FE_TOWARDZERO,	/* round to zero (truncate) */
40    FP_RP=FE_UPWARD,		/* round toward positive infinity */
41    FP_RM=FE_DOWNWARD		/* round toward negative infinity */
42} fp_rnd;
43
44#endif /* !_ISOC99_SOURCE */
45
46#endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
47
48#endif /* _SPARC_IEEEFP_H_ */
49