fenv.h revision 1.2 
1/*	$NetBSD: fenv.h,v 1.2 2017/03/22 23:11:09 chs Exp $	*/
2
3/*
4 * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
5 * Public domain.
6 */
7
8#ifndef _RISCV_FENV_H_
9#define _RISCV_FENV_H_
10
11typedef int fenv_t;		/* FPSCR */
12typedef int fexcept_t;
13
14#define	FE_INEXACT	0x00	/* Result inexact */
15#define	FE_UNDERFLOW	0x02	/* Result underflowed */
16#define	FE_OVERFLOW	0x04	/* Result overflowed */
17#define	FE_DIVBYZERO	0x08	/* divide-by-zero */
18#define	FE_INVALID	0x10	/* Result invalid */
19
20#define	FE_ALL_EXCEPT	0x1f
21
22#define	FE_TONEAREST	0	/* round to nearest representable number */
23#define	FE_TOWARDZERO	1	/* round to zero (truncate) */
24#define	FE_DOWNWARD	2	/* round toward negative infinity */
25#define	FE_UPWARD	3	/* round toward positive infinity */
26
27__BEGIN_DECLS
28
29/* Default floating-point environment */
30extern const fenv_t	__fe_dfl_env;
31#define FE_DFL_ENV	(&__fe_dfl_env)
32
33__END_DECLS
34
35#endif /* _RISCV_FENV_H_ */
36