diff options
Diffstat (limited to 'libmp/port/mpinvert.c')
| -rw-r--r-- | libmp/port/mpinvert.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/libmp/port/mpinvert.c b/libmp/port/mpinvert.c index ee263070..45912d6b 100644 --- a/libmp/port/mpinvert.c +++ b/libmp/port/mpinvert.c @@ -9,13 +9,15 @@ void mpinvert(mpint *b, mpint *m, mpint *res) { mpint *dc1, *dc2; // don't care + int r; dc1 = mpnew(0); dc2 = mpnew(0); mpextendedgcd(b, m, dc1, res, dc2); - if(mpcmp(dc1, mpone) != 0) - abort(); - mpmod(res, m, res); + r = mpcmp(dc1, mpone); mpfree(dc1); mpfree(dc2); + if(r != 0) + sysfatal("mpinvert: no inverse"); + mpmod(res, m, res); } |