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ieeefp.h revision 1.6 
      1 /*	$NetBSD: ieeefp.h,v 1.6 2008/08/05 16:47:42 matt Exp $	*/
      2 
      3 /*
      4  * Written by J.T. Conklin, Apr 6, 1995
      5  * Modified by Jason R. Thorpe, June 22, 2003
      6  * Public domain.
      7  */
      8 
      9 #ifndef _M68K_IEEEFP_H_
     10 #define _M68K_IEEEFP_H_
     11 
     12 #include <sys/featuretest.h>
     13 
     14 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
     15 
     16 typedef int fenv_t;
     17 typedef int fexcept_t;
     18 
     19 #define	FE_INEXACT	0x01	/* imprecise (loss of precision) */
     20 #define	FE_DIVBYZERO	0x02	/* divide-by-zero exception */
     21 #define	FE_UNDERFLOW	0x04	/* overflow exception */
     22 #define	FE_OVERFLOW	0x08	/* underflow exception */
     23 #define	FE_INVALID	0x10	/* invalid operation exception */
     24 
     25 #define	FE_ALL_EXCEPT	0x1f
     26 
     27 #define	FE_TONEAREST	0	/* round to nearest representable number */
     28 #define	FE_TOWARDZERO	1	/* round to zero (truncate) */
     29 #define	FE_UPWARD	2	/* round toward positive infinity */
     30 #define	FE_DOWNWARD	3	/* round toward negative infinity */
     31 
     32 #if !defined(_ISOC99_SOURCE)
     33 
     34 typedef int fp_except;
     35 
     36 #define FP_X_IMP	FE_INEXACT	/* imprecise (loss of precision) */
     37 #define FP_X_DZ		FE_DIVBYZERO	/* divide-by-zero exception */
     38 #define FP_X_UFL	FE_UNDERFLOW	/* underflow exception */
     39 #define FP_X_OFL	FE_OVERFLOW	/* overflow exception */
     40 #define FP_X_INV	FE_INVALID	/* invalid operation exception */
     41 
     42 typedef enum {
     43     FP_RN=FE_TONEAREST,		/* round to nearest representable number */
     44     FP_RZ=FE_TOWARDZERO,	/* round to zero (truncate) */
     45     FP_RM=FE_DOWNWARD,		/* round toward negative infinity */
     46     FP_RP=FE_UPWARD		/* round toward positive infinity */
     47 } fp_rnd;
     48 
     49 typedef enum {
     50     FP_PE=0,			/* extended-precision (64-bit) */
     51     FP_PS=1,			/* single-precision (24-bit) */
     52     FP_PD=2			/* double-precision (53-bit) */
     53 } fp_prec;
     54 
     55 #endif /* defined(_NETBSD_SOURCE) */
     56 
     57 #define	__HAVE_FP_PREC
     58 
     59 
     60 #endif	/* _NETBSD_SOURCE || _ISOC99_SOURCE */
     61 
     62 #endif /* _M68K_IEEEFP_H_ */
     63