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ieeefp.h revision 1.1.108.1
      1  1.1.108.1  yamt /*	$NetBSD: ieeefp.h,v 1.1.108.1 2009/05/04 08:12:09 yamt Exp $	*/
      2        1.1  fvdl 
      3        1.1  fvdl /*
      4        1.1  fvdl  * Written by J.T. Conklin, Apr 6, 1995
      5        1.1  fvdl  * Public domain.
      6        1.1  fvdl  */
      7        1.1  fvdl 
      8        1.1  fvdl #ifndef _X86_IEEEFP_H_
      9        1.1  fvdl #define _X86_IEEEFP_H_
     10        1.1  fvdl 
     11  1.1.108.1  yamt #include <sys/featuretest.h>
     12  1.1.108.1  yamt 
     13  1.1.108.1  yamt #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
     14  1.1.108.1  yamt 
     15  1.1.108.1  yamt typedef int fenv_t;
     16  1.1.108.1  yamt typedef int fexcept_t;
     17  1.1.108.1  yamt 
     18  1.1.108.1  yamt #define	FE_INVALID	0x01	/* invalid operation exception */
     19  1.1.108.1  yamt #define	FE_DENORMAL	0x02	/* denormalization exception */
     20  1.1.108.1  yamt #define	FE_DIVBYZERO	0x04	/* divide-by-zero exception */
     21  1.1.108.1  yamt #define	FE_OVERFLOW	0x08	/* underflow exception */
     22  1.1.108.1  yamt #define	FE_UNDERFLOW	0x10	/* overflow exception */
     23  1.1.108.1  yamt #define	FE_INEXACT	0x20	/* imprecise (loss of precision) */
     24  1.1.108.1  yamt 
     25  1.1.108.1  yamt #define	FE_ALL_EXCEPT	0x3f
     26  1.1.108.1  yamt 
     27  1.1.108.1  yamt #define	FE_TONEAREST	0	/* round to nearest representable number */
     28  1.1.108.1  yamt #define	FE_DOWNWARD	1	/* round toward negative infinity */
     29  1.1.108.1  yamt #define	FE_UPWARD	2	/* round toward positive infinity */
     30  1.1.108.1  yamt #define	FE_TOWARDZERO	3	/* round to zero (truncate) */
     31  1.1.108.1  yamt 
     32  1.1.108.1  yamt #if !defined(_ISOC99_SOURCE)
     33  1.1.108.1  yamt 
     34        1.1  fvdl typedef int fp_except;
     35  1.1.108.1  yamt #define FP_X_INV	FE_INVALID	/* invalid operation exception */
     36  1.1.108.1  yamt #define FP_X_DNML	FE_DENORMAL	/* denormalization exception */
     37  1.1.108.1  yamt #define FP_X_DZ		FE_DIVBYZERO	/* divide-by-zero exception */
     38  1.1.108.1  yamt #define FP_X_OFL	FE_OVERFLOW	/* overflow exception */
     39  1.1.108.1  yamt #define FP_X_UFL	FE_UNDERFLOW	/* underflow exception */
     40  1.1.108.1  yamt #define FP_X_IMP	FE_INEXACT	/* imprecise (loss of precision) */
     41        1.1  fvdl 
     42        1.1  fvdl typedef enum {
     43  1.1.108.1  yamt     FP_RN=FE_TONEAREST,		/* round to nearest representable number */
     44  1.1.108.1  yamt     FP_RM=FE_DOWNWARD,		/* round toward negative infinity */
     45  1.1.108.1  yamt     FP_RP=FE_UPWARD,		/* round toward positive infinity */
     46  1.1.108.1  yamt     FP_RZ=FE_TOWARDZERO		/* round to zero (truncate) */
     47        1.1  fvdl } fp_rnd;
     48        1.1  fvdl 
     49  1.1.108.1  yamt #endif /* !_ISOC99_SOURCE */
     50  1.1.108.1  yamt 
     51  1.1.108.1  yamt #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
     52  1.1.108.1  yamt 
     53        1.1  fvdl #endif /* _X86_IEEEFP_H_ */
     54