diff options
Diffstat (limited to 'bignum.c')
-rw-r--r-- | bignum.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -1675,8 +1675,10 @@ rb_big_pow(VALUE x, VALUE y) if (yy > 0) { VALUE z = 0; SIGNED_VALUE mask; + const long BIGLEN_LIMIT = 1024*1024 / SIZEOF_BDIGITS; - if (RBIGNUM(x)->len * SIZEOF_BDIGITS * yy > 1024*1024) { + if ((RBIGNUM(x)->len > BIGLEN_LIMIT) || + (RBIGNUM(x)->len > BIGLEN_LIMIT / yy)) { rb_warn("in a**b, b may be too big"); d = (double)yy; break; |