diff options
Diffstat (limited to 'src/libbiguint/bu_div.c')
-rw-r--r-- | src/libbiguint/bu_div.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/libbiguint/bu_div.c b/src/libbiguint/bu_div.c new file mode 100644 index 0000000..c7718e2 --- /dev/null +++ b/src/libbiguint/bu_div.c @@ -0,0 +1,23 @@ +/* ISC license. */ + +#include <errno.h> +#include <skalibs/uint32.h> +#include <skalibs/biguint.h> + +int bu_div (uint32 const *a, unsigned int an, uint32 const *b, unsigned int bn, uint32 *q, unsigned int qn, uint32 *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 qq[alen] ; + uint32 rr[alen] ; + register 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 ; + } +} |