1 /* $NetBSD: ieeefp.h,v 1.3 2008/08/05 16:47:42 matt Exp $ */ 2 3 /* 4 * Written by J.T. Conklin, Apr 6, 1995 5 * Public domain. 6 */ 7 8 #ifndef _POWERPC_IEEEFP_H_ 9 #define _POWERPC_IEEEFP_H_ 10 11 #include <sys/featuretest.h> 12 13 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE) 14 15 typedef int fenv_t; 16 typedef int fexcept_t; 17 18 #define FE_INEXACT 0x01 /* imprecise (loss of precision) */ 19 #define FE_DIVBYZERO 0x02 /* divide-by-zero exception */ 20 #define FE_OVERFLOW 0x04 /* underflow exception */ 21 #define FE_UNDERFLOW 0x08 /* overflow exception */ 22 #define FE_INVALID 0x10 /* invalid operation exception */ 23 24 #define FE_ALL_EXCEPT 0x1f 25 26 #define FE_TONEAREST 0 /* round to nearest representable number */ 27 #define FE_TOWARDZERO 1 /* round to zero (truncate) */ 28 #define FE_UPWARD 2 /* round toward positive infinity */ 29 #define FE_DOWNWARD 3 /* round toward negative infinity */ 30 31 #if !defined(_ISOC99_SOURCE) 32 33 typedef int fp_except; 34 #define FP_X_IMP FE_INEXACT /* imprecise (loss of precision) */ 35 #define FP_X_DZ FE_DIVBYZERO /* divide-by-zero exception */ 36 #define FP_X_UFL FE_UNDERFLOW /* underflow exception */ 37 #define FP_X_OFL FE_OVERFLOW /* overflow exception */ 38 #define FP_X_INV FE_INVALID /* invalid operation exception */ 39 40 typedef enum { 41 FP_RN=FE_TONEAREST, /* round to nearest representable number */ 42 FP_RZ=FE_TOWARDZERO, /* round to zero (truncate) */ 43 FP_RP=FE_UPWARD, /* round toward positive infinity */ 44 FP_RM=FE_DOWNWARD /* round toward negative infinity */ 45 } fp_rnd; 46 47 #endif /* !_ISOC99_SOURCE */ 48 49 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */ 50 51 #endif /* _POWERPC_IEEEFP_H_ */ 52