diff options
Diffstat (limited to 'miscutils')
| -rw-r--r-- | miscutils/bc.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index 3da03b437..2cfe87b1e 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -224,14 +224,6 @@ typedef struct BcNum { #define BC_NUM_KARATSUBA_LEN (32) -#define BC_NUM_NEG(n, neg) ((((ssize_t)(n)) ^ -((ssize_t)(neg))) + (neg)) -#define BC_NUM_ONE(n) ((n)->len == 1 && (n)->rdx == 0 && (n)->num[0] == 1) -#define BC_NUM_INT(n) ((n)->len - (n)->rdx) -#define BC_NUM_AREQ(a, b) \ - (BC_MAX((a)->rdx, (b)->rdx) + BC_MAX(BC_NUM_INT(a), BC_NUM_INT(b)) + 1) -#define BC_NUM_MREQ(a, b, scale) \ - (BC_NUM_INT(a) + BC_NUM_INT(b) + BC_MAX((scale), (a)->rdx + (b)->rdx) + 1) - typedef BcStatus (*BcNumBinaryOp)(BcNum *, BcNum *, BcNum *, size_t); typedef void (*BcNumDigitOp)(size_t, size_t, bool, size_t *, size_t); @@ -1486,6 +1478,20 @@ static void bc_num_subArrays(BcDig *restrict a, BcDig *restrict b, } } +#define BC_NUM_NEG(n, neg) ((((ssize_t)(n)) ^ -((ssize_t)(neg))) + (neg)) +#define BC_NUM_ONE(n) ((n)->len == 1 && (n)->rdx == 0 && (n)->num[0] == 1) +#define BC_NUM_INT(n) ((n)->len - (n)->rdx) +//#define BC_NUM_AREQ(a, b) (BC_MAX((a)->rdx, (b)->rdx) + BC_MAX(BC_NUM_INT(a), BC_NUM_INT(b)) + 1) +static /*ALWAYS_INLINE*/ size_t BC_NUM_AREQ(BcNum *a, BcNum *b) +{ + return BC_MAX(a->rdx, b->rdx) + BC_MAX(BC_NUM_INT(a), BC_NUM_INT(b)) + 1; +} +//#define BC_NUM_MREQ(a, b, scale) (BC_NUM_INT(a) + BC_NUM_INT(b) + BC_MAX((scale), (a)->rdx + (b)->rdx) + 1) +static /*ALWAYS_INLINE*/ size_t BC_NUM_MREQ(BcNum *a, BcNum *b, size_t scale) +{ + return BC_NUM_INT(a) + BC_NUM_INT(b) + BC_MAX(scale, a->rdx + b->rdx) + 1; +} + static ssize_t bc_num_compare(BcDig *restrict a, BcDig *restrict b, size_t len) { size_t i; @@ -2084,7 +2090,12 @@ static BcStatus bc_num_p(BcNum *a, BcNum *b, BcNum *restrict c, size_t scale) bc_num_init(©, a->len); bc_num_copy(©, a); - if (!neg) scale = BC_MIN(a->rdx * pow, BC_MAX(scale, a->rdx)); + if (!neg) { + if (a->rdx > scale) + scale = a->rdx; + if (a->rdx * pow < scale) + scale = a->rdx * pow; + } b->neg = neg; |