1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
/* ISC license. */
#include <errno.h>
#include <skalibs/biguint.h>
int bu_div (uint32_t const *a, unsigned int an, uint32_t const *b, unsigned int bn, uint32_t *q, unsigned int qn, uint32_t *r, unsigned int rn)
{
unsigned int alen = bu_len(a, an) ;
unsigned int blen = bu_len(b, bn) ;
if (!blen) return (errno = EDOM, 0) ;
else
{
uint32_t qq[alen] ;
uint32_t rr[alen] ;
int qh, rh ;
bu_copy_internal(rr, a, alen) ;
bu_div_internal(rr, alen, b, blen, qq, alen) ;
qh = bu_copy(q, qn, qq, alen) ;
rh = bu_copy(r, rn, rr, alen) ;
return qh && rh ;
}
}
|