summaryrefslogtreecommitdiff
path: root/bignum.c
diff options
context:
space:
mode:
Diffstat (limited to 'bignum.c')
-rw-r--r--bignum.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/bignum.c b/bignum.c
index 3517db2..f56c7d2 100644
--- a/bignum.c
+++ b/bignum.c
@@ -1646,8 +1646,10 @@ rb_big_pow(x, y)
yy = FIX2LONG(y);
if (yy > 0) {
VALUE z = x;
+ 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;