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author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-09-11 06:30:56 +0000 |
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committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-09-11 06:30:56 +0000 |
commit | 63471c7c3279ba5b152b170afcce5092ea62dda6 (patch) | |
tree | dcec484f4fcee1e60b9bbf36ae8d17c00e85edfd | |
parent | ba75344338a54c9faf4dd5663df6698998142a62 (diff) | |
download | ruby-63471c7c3279ba5b152b170afcce5092ea62dda6.tar.gz |
* bignum.c (bigdivrem): adjust length for division and remainder.
a patch from TOYOFUKU Chikanobu <nobu_toyofuku at nifty.com> in
[ruby-dev:36231].
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19293 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r-- | ChangeLog | 6 | ||||
-rw-r--r-- | bignum.c | 2 |
2 files changed, 8 insertions, 0 deletions
@@ -1,3 +1,9 @@ +Thu Sep 11 15:23:26 2008 Yukihiro Matsumoto <matz@ruby-lang.org> + + * bignum.c (bigdivrem): adjust length for division and remainder. + a patch from TOYOFUKU Chikanobu <nobu_toyofuku at nifty.com> in + [ruby-dev:36231]. + Thu Sep 11 02:59:47 2008 Tanaka Akira <akr@fsij.org> * io.c (io_binwrite): extracted from io_fwrite. @@ -1749,6 +1749,7 @@ bigdivrem(VALUE x, VALUE y, VALUE *divp, VALUE *modp) zds = BDIGITS(*divp); j = (nx==ny ? nx+2 : nx+1) - ny; for (i = 0;i < j;i++) zds[i] = zds[i+ny]; + if (!zds[i-1]) i--; RBIGNUM_SET_LEN(*divp, i); } if (modp) { /* normalize remainder */ @@ -1764,6 +1765,7 @@ bigdivrem(VALUE x, VALUE y, VALUE *divp, VALUE *modp) t2 = BIGUP(q); } } + if (!zds[ny-1]) ny--; RBIGNUM_SET_LEN(*modp, ny); RBIGNUM_SET_SIGN(*modp, RBIGNUM_SIGN(x)); } |