1 /* $NetBSD: ieeefp.h,v 1.7 2011/05/20 21:42:49 nakayama 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 #define FE_INEXACT 0x01 /* imprecise (loss of precision) */ 16 #define FE_DIVBYZERO 0x02 /* divide-by-zero exception */ 17 #define FE_UNDERFLOW 0x04 /* overflow exception */ 18 #define FE_OVERFLOW 0x08 /* underflow exception */ 19 #define FE_INVALID 0x10 /* invalid operation exception */ 20 21 #define FE_ALL_EXCEPT 0x1f 22 23 #define FE_TONEAREST 0 /* round to nearest representable number */ 24 #define FE_TOWARDZERO 1 /* round to zero (truncate) */ 25 #define FE_UPWARD 2 /* round toward positive infinity */ 26 #define FE_DOWNWARD 3 /* round toward negative infinity */ 27 28 #if !defined(_ISOC99_SOURCE) 29 30 typedef int fp_except; 31 #define FP_X_IMP FE_INEXACT /* imprecise (loss of precision) */ 32 #define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */ 33 #define FP_X_UFL FE_UNDERFLOW /* underflow exception */ 34 #define FP_X_OFL FE_OVERFLOW /* overflow exception */ 35 #define FP_X_INV FE_INVALID /* invalid operation exception */ 36 37 typedef enum { 38 FP_RN=FE_TONEAREST, /* round to nearest representable number */ 39 FP_RZ=FE_TOWARDZERO, /* round to zero (truncate) */ 40 FP_RP=FE_UPWARD, /* round toward positive infinity */ 41 FP_RM=FE_DOWNWARD /* round toward negative infinity */ 42 } fp_rnd; 43 44 #endif /* !_ISOC99_SOURCE */ 45 46 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ 47 48 #endif /* _SPARC_IEEEFP_H_ */ 49