Home | History | Annotate | Line # | Download | only in include
ieeefp.h revision 1.5 
      1 /*	$NetBSD: ieeefp.h,v 1.5 2008/08/05 16:47:42 matt 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 typedef int fenv_t;
     16 typedef int fexcept_t;
     17 
     18 #define	FE_INEXACT	0x01	/* imprecise (loss of precision) */
     19 #define	FE_DIVBYZERO	0x02	/* divide-by-zero exception */
     20 #define	FE_UNDERFLOW	0x04	/* overflow exception */
     21 #define	FE_OVERFLOW	0x08	/* underflow exception */
     22 #define	FE_INVALID	0x10	/* invalid operation exception */
     23 
     24 #define	FE_ALL_EXCEPT	0x1f
     25 
     26 #define	FE_TONEAREST	0	/* round to nearest representable number */
     27 #define	FE_TOWARDZERO	1	/* round to zero (truncate) */
     28 #define	FE_UPWARD	2	/* round toward positive infinity */
     29 #define	FE_DOWNWARD	3	/* round toward negative infinity */
     30 
     31 #if !defined(_ISOC99_SOURCE)
     32 
     33 typedef int fp_except;
     34 #define FP_X_IMP	FE_INEXACT	/* imprecise (loss of precision) */
     35 #define FP_X_DZ		FE_DIVBYZERO	/* divide-by-zero exception */
     36 #define FP_X_UFL	FE_UNDERFLOW	/* underflow exception */
     37 #define FP_X_OFL	FE_OVERFLOW	/* overflow exception */
     38 #define FP_X_INV	FE_INVALID	/* invalid operation exception */
     39 
     40 typedef enum {
     41     FP_RN=FE_TONEAREST,		/* round to nearest representable number */
     42     FP_RZ=FE_TOWARDZERO,	/* round to zero (truncate) */
     43     FP_RP=FE_UPWARD,		/* round toward positive infinity */
     44     FP_RM=FE_DOWNWARD		/* round toward negative infinity */
     45 } fp_rnd;
     46 
     47 #endif /* !_ISOC99_SOURCE */
     48 
     49 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
     50 
     51 #endif /* _SPARC_IEEEFP_H_ */
     52