* prec.c (prec_prec_f): documentation patch from

  <gerardo.santana at gmail.com>.  [ruby-core:07689]

* bignum.c (rb_big_pow): second operand may be too big even if
  it's a Fixnum.  [ruby-talk:187984]

* README.EXT: update symbol description.  [ruby-talk:188104]

* COPYING: explicitly note GPLv2.  [ruby-talk:187922]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@10088 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/bignum.c b/bignum.c
index 425676d32c..6a7a83c085 100644
--- a/bignum.c
+++ b/bignum.c
@@ -1606,6 +1606,11 @@ rb_big_pow(x, y)
 	if (yy > 0) {
 	    VALUE z = x;
 
+	    if (RBIGNUM(x)->len * SIZEOF_BDIGITS * yy > 1024*1024) {
+		rb_warn("in a**b, b may be too big");
+		d = (double)yy;
+		break;
+	    }
 	    for (;;) {
 		yy -= 1;
 		if (yy == 0) break;