diff options
author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2006-09-07 16:35:59 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2006-09-07 16:35:59 +0000 |
commit | b2b33db3552e1c99bf9842a36fa30c064fc5a5d6 (patch) | |
tree | 5b090b0d5730bd14c5b282294b0266756df17aba /bignum.c | |
parent | a5913ab9ff98ba7ae14858a3a20cd685a5c49184 (diff) |
* numeric.c (fix_plus): addition in Fixnum will never overflow
long. a patch from Ondrej Bilka <neleai at seznam.cz>.
[ruby-core:08794]
* numeric.c (fix_minus): ditto.
* bignum.c (rb_big_pow): eagerly truncate resulting bignum.
[ruby-core:08794]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@10880 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'bignum.c')
-rw-r--r-- | bignum.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -1617,8 +1617,10 @@ rb_big_pow(x, y) while (yy % 2 == 0) { yy /= 2; x = rb_big_mul(x, x); + if (!BDIGITS(x)[RBIGNUM(x)->len-1]) RBIGNUM(x)->len--; } z = rb_big_mul(z, x); + if (!BDIGITS(z)[RBIGNUM(z)->len-1]) RBIGNUM(z)->len--; } return bignorm(z); } |