diff options
Diffstat (limited to 'src/mpfr-impl.h')
| -rw-r--r-- | src/mpfr-impl.h | 26 |
1 files changed, 7 insertions, 19 deletions
diff --git a/src/mpfr-impl.h b/src/mpfr-impl.h index 10005b175..1db245499 100644 --- a/src/mpfr-impl.h +++ b/src/mpfr-impl.h @@ -948,29 +948,17 @@ typedef intmax_t mpfr_eexp_t; ******************* Limb Macros ********************** ******************************************************/ - /* Definition of MPFR_LIMB_HIGHBIT */ -#if defined(GMP_LIMB_HIGHBIT) -# define MPFR_LIMB_HIGHBIT GMP_LIMB_HIGHBIT -#elif defined(MP_LIMB_T_HIGHBIT) -# define MPFR_LIMB_HIGHBIT MP_LIMB_T_HIGHBIT -#else -# error "Neither GMP_LIMB_HIGHBIT nor MP_LIMB_T_HIGHBIT defined in GMP" -#endif +/* Definition of simple mp_limb_t constants */ +#define MPFR_LIMB_ZERO ((mp_limb_t) 0) +#define MPFR_LIMB_ONE ((mp_limb_t) 1) +#define MPFR_LIMB_HIGHBIT (MPFR_LIMB_ONE << (GMP_NUMB_BITS - 1)) +#define MPFR_LIMB_MAX ((mp_limb_t) -1) /* Mask to get the Most Significant Bit of a limb */ -#define MPFR_LIMB_MSB(l) ((l)&MPFR_LIMB_HIGHBIT) - -/* Definition of MPFR_LIMB_ONE & MPFR_LIMB_ZERO */ -#ifdef CNST_LIMB -# define MPFR_LIMB_ONE CNST_LIMB(1) -# define MPFR_LIMB_ZERO CNST_LIMB(0) -#else -# define MPFR_LIMB_ONE ((mp_limb_t) 1L) -# define MPFR_LIMB_ZERO ((mp_limb_t) 0L) -#endif +#define MPFR_LIMB_MSB(l) ((l) & MPFR_LIMB_HIGHBIT) /* Mask for the low 's' bits of a limb */ -#define MPFR_LIMB_MASK(s) ((MPFR_LIMB_ONE<<(s))-MPFR_LIMB_ONE) +#define MPFR_LIMB_MASK(s) ((MPFR_LIMB_ONE << (s)) - MPFR_LIMB_ONE) |