diff options
| -rw-r--r-- | sys/include/mp.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/include/mp.h b/sys/include/mp.h index b49cb16a7..0de6db39c 100644 --- a/sys/include/mp.h +++ b/sys/include/mp.h @@ -102,6 +102,9 @@ int mpcmp(mpint *b1, mpint *b2); /* res = s != 0 ? b1 : b2 */ void mpsel(int s, mpint *b1, mpint *b2, mpint *res); +/* return n! */ +mpint* mpfactorial(ulong n); + /* extended gcd return d, x, and y, s.t. d = gcd(a,b) and ax+by = d */ void mpextendedgcd(mpint *a, mpint *b, mpint *d, mpint *x, mpint *y); |