59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
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/* $NetBSD: ieeefp.h,v 1.2 2008/08/05 16:47:41 matt Exp $ */
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/*
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* Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
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* Public domain.
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*/
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#ifndef _ARM32_IEEEFP_H_
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#define _ARM32_IEEEFP_H_
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#include <sys/featuretest.h>
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#if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
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typedef int fenv_t;
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typedef int fexcept_t;
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#define FE_INVALID 0x01 /* invalid operation exception */
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#define FE_DIVBYZERO 0x02 /* divide-by-zero exception */
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#define FE_OVERFLOW 0x04 /* overflow exception */
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#define FE_UNDERFLOW 0x08 /* underflow exception */
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#define FE_INEXACT 0x10 /* imprecise (loss of precision; "inexact") */
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#define FE_ALL_EXCEPT 0x1f
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#define FE_TONEAREST 0 /* round to nearest representable number */
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#define FE_UPWARD 1 /* round toward positive infinity */
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#define FE_DOWNWARD 2 /* round toward negative infinity */
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#define FE_TOWARDZERO 3 /* round to zero (truncate) */
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#if !defined(_ISOC99_SOURCE)
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/* Exception type (used by fpsetmask() et al.) */
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typedef int fp_except;
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/* Bit defines for fp_except */
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#define FP_X_INV FE_INVALID /* invalid operation exception */
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#define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */
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#define FP_X_OFL FE_OVERFLOW /* overflow exception */
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#define FP_X_UFL FE_UNDERFLOW /* underflow exception */
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#define FP_X_IMP FE_INEXACT /* imprecise (prec. loss; "inexact") */
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/* Rounding modes */
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typedef enum {
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FP_RN=FE_TONEAREST, /* round to nearest representable number */
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FP_RP=FE_UPWARD, /* round toward positive infinity */
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FP_RM=FE_DOWNWARD, /* round toward negative infinity */
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FP_RZ=FE_TOWARDZERO /* round to zero (truncate) */
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} fp_rnd;
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#endif /* !_ISOC99_SOURCE */
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#endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
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#endif /* _ARM32_IEEEFP_H_ */
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