1/* $NetBSD: ieeefp.h,v 1.1 2001/01/10 19:02:06 bjh21 Exp $ */ 2 3/* 4 * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995 5 * Public domain. 6 */ 7 8#ifndef _ARM32_IEEEFP_H_ 9#define _ARM32_IEEEFP_H_ 10 11#include <sys/featuretest.h> 12 13#if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE) 14 15typedef int fenv_t; 16typedef int fexcept_t; 17 18#define FE_INVALID 0x01 /* invalid operation exception */ 19#define FE_DIVBYZERO 0x02 /* divide-by-zero exception */ 20#define FE_OVERFLOW 0x04 /* overflow exception */ 21#define FE_UNDERFLOW 0x08 /* underflow exception */ 22#define FE_INEXACT 0x10 /* imprecise (loss of precision; "inexact") */ 23 24#define FE_ALL_EXCEPT 0x1f 25 26#define FE_TONEAREST 0 /* round to nearest representable number */ 27#define FE_UPWARD 1 /* round toward positive infinity */ 28#define FE_DOWNWARD 2 /* round toward negative infinity */ 29#define FE_TOWARDZERO 3 /* round to zero (truncate) */ 30 31#if !defined(_ISOC99_SOURCE) 32 33/* Exception type (used by fpsetmask() et al.) */ 34 35typedef int fp_except; 36 37/* Bit defines for fp_except */ 38 39#define FP_X_INV FE_INVALID /* invalid operation exception */ 40#define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */ 41#define FP_X_OFL FE_OVERFLOW /* overflow exception */ 42#define FP_X_UFL FE_UNDERFLOW /* underflow exception */ 43#define FP_X_IMP FE_INEXACT /* imprecise (prec. loss; "inexact") */ 44 45/* Rounding modes */ 46 47typedef enum { 48 FP_RN=FE_TONEAREST, /* round to nearest representable number */ 49 FP_RP=FE_UPWARD, /* round toward positive infinity */ 50 FP_RM=FE_DOWNWARD, /* round toward negative infinity */ 51 FP_RZ=FE_TOWARDZERO /* round to zero (truncate) */ 52} fp_rnd; 53 54#endif /* !_ISOC99_SOURCE */ 55 56#endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ 57 58#endif /* _ARM32_IEEEFP_H_ */ 59