StdLib/Include/Aarch64/machine/ieeefp.h

   1 /*  $NetBSD: ieeefp.h,v 1.3 2013/04/23 05:42:23 matt Exp $  */
   2
   3 /*
   4  * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
   5  * Public domain.
   6  */
   7
   8 #ifndef _AARCH64_IEEEFP_H_
   9 #define _AARCH64_IEEEFP_H_
  10
  11 #include <LibConfig.h>
  12 #include <sys/featuretest.h>
  13
  14 #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
  15
  16 #include <machine/fenv.h>
  17
  18 #if !defined(_ISOC99_SOURCE)
  19
  20 /* Exception type (used by fpsetmask() et al.) */
  21
  22 typedef int fp_except;
  23
  24 /* Bit defines for fp_except */
  25
  26 #define FP_X_INV    FE_INVALID      /* invalid operation exception */
  27 #define FP_X_DZ     FE_DIVBYZERO    /* divide-by-zero exception */
  28 #define FP_X_OFL    FE_OVERFLOW     /* overflow exception */
  29 #define FP_X_UFL    FE_UNDERFLOW    /* underflow exception */
  30 #define FP_X_IMP    FE_INEXACT      /* imprecise (prec. loss; "inexact") */
  31
  32 /* Rounding modes */
  33
  34 typedef enum {
  35     FP_RN=FE_TONEAREST,     /* round to nearest representable number */
  36     FP_RP=FE_UPWARD,        /* round toward positive infinity */
  37     FP_RM=FE_DOWNWARD,      /* round toward negative infinity */
  38     FP_RZ=FE_TOWARDZERO     /* round to zero (truncate) */
  39 } fp_rnd;
  40
  41 #endif /* !_ISOC99_SOURCE */
  42
  43 #endif /* _NETBSD_SOURCE || _ISOC99_SOURCE */
  44
  45 #endif /* _AARCH64_IEEEFP_H_ */