1 /* $NetBSD: fenv.h,v 1.3 2020/03/14 16:12:16 skrll Exp $ */ 2 3 /* 4 * Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995 5 * Public domain. 6 */ 7 8 #ifndef _RISCV_FENV_H_ 9 #define _RISCV_FENV_H_ 10 11 typedef int fenv_t; /* FPSCR */ 12 typedef int fexcept_t; 13 14 #define FE_INEXACT 0x00 /* Result inexact */ 15 #define FE_UNDERFLOW 0x02 /* Result underflowed */ 16 #define FE_OVERFLOW 0x04 /* Result overflowed */ 17 #define FE_DIVBYZERO 0x08 /* divide-by-zero */ 18 #define FE_INVALID 0x10 /* Result invalid */ 19 20 #define FE_ALL_EXCEPT 0x1f 21 22 #define FE_TONEAREST 0 /* round to nearest representable number */ 23 #define FE_TOWARDZERO 1 /* round to zero (truncate) */ 24 #define FE_DOWNWARD 2 /* round toward negative infinity */ 25 #define FE_UPWARD 3 /* round toward positive infinity */ 26 27 __BEGIN_DECLS 28 29 /* Default floating-point environment */ 30 extern const fenv_t __fe_dfl_env; 31 #define FE_DFL_ENV (&__fe_dfl_env) 32 33 __END_DECLS 34 35 #endif /* _RISCV_FENV_H_ */ 36