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bc: simplify bc_num_ulong2num()

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function                                             old     new   delta
bc_num_ulong2num                                      64      59      -5

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2018-12-10 12:22:15 +01:00
parent 9311e01803
commit b696d9ec20
1 changed files with 13 additions and 4 deletions
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17
miscutils/bc.c
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@ -1467,16 +1467,25 @@ static BcStatus bc_num_ulong(BcNum *n, unsigned long *result_p)
static void bc_num_ulong2num(BcNum *n, unsigned long val)
{
size_t len;
BcDig *ptr;
unsigned long i;
bc_num_zero(n);
if (val == 0) return;
for (len = 1, i = ULONG_MAX; i != 0; i /= 10, ++len) bc_num_expand(n, len);
for (ptr = n->num, i = 0; val; ++i, ++n->len, val /= 10) ptr[i] = val % 10;
if (ULONG_MAX == 0xffffffffUL)
bc_num_expand(n, 10); // 10 digits: 4294967295
if (ULONG_MAX == 0xffffffffffffffffUL)
bc_num_expand(n, 20); // 20 digits: 18446744073709551615
BUILD_BUG_ON(ULONG_MAX > 0xffffffffffffffffUL);
ptr = n->num;
for (;;) {
n->len++;
*ptr++ = val % 10;
val /= 10;
if (val == 0) break;
}
}
static void bc_num_subArrays(BcDig *restrict a, BcDig *restrict b,