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* bignum.c (bigdivrem): adjust length for division and remainder.

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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
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matz 2008-09-11 06:30:56 +00:00
parent ba75344338
commit 63471c7c32
2 changed files with 8 additions and 0 deletions
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6
ChangeLog
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@ -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.

2
bignum.c
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@ -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));
}