1 /* $NetBSD: ieeefp.h,v 1.6 2011/04/24 11:32:36 tron 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 #if !defined(__sparc64__) 16 typedef int fenv_t; 17 typedef int fexcept_t; 18 #endif 19 20 #define FE_INEXACT 0x01 /* imprecise (loss of precision) */ 21 #define FE_DIVBYZERO 0x02 /* divide-by-zero exception */ 22 #define FE_UNDERFLOW 0x04 /* overflow exception */ 23 #define FE_OVERFLOW 0x08 /* underflow exception */ 24 #define FE_INVALID 0x10 /* invalid operation exception */ 25 26 #define FE_ALL_EXCEPT 0x1f 27 28 #define FE_TONEAREST 0 /* round to nearest representable number */ 29 #define FE_TOWARDZERO 1 /* round to zero (truncate) */ 30 #define FE_UPWARD 2 /* round toward positive infinity */ 31 #define FE_DOWNWARD 3 /* round toward negative infinity */ 32 33 #if !defined(_ISOC99_SOURCE) 34 35 typedef int fp_except; 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_RP=FE_UPWARD, /* round toward positive infinity */ 46 FP_RM=FE_DOWNWARD /* round toward negative infinity */ 47 } fp_rnd; 48 49 #endif /* !_ISOC99_SOURCE */ 50 51 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ 52 53 #endif /* _SPARC_IEEEFP_H_ */ 54