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authormrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-01-13 17:29:58 +0000
committermrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2014-01-13 17:29:58 +0000
commite7fe5648cf10528422ce720b50c8641bd5d8c267 (patch)
treed3d804081658d6ba737cb15b0711f26e9bccd8ce /ext/bigdecimal/bigdecimal.c
parentb2e85cbdf4980e840ffda2cdfc9c18f45e636ecb (diff)
* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): Add an additional
digit for the quotient to be compatible with bigdecimal 1.2.1 and the former. [ruby-core:59365] [#9316] [#9305] * test/bigdecimal/test_bigdecimal.rb: tests for the above change. * ext/bigdecimal/bigdecimal.gemspec: bigdecimal version 1.2.4. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44588 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/bigdecimal/bigdecimal.c')
-rw-r--r--ext/bigdecimal/bigdecimal.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c
index 5af8441..c7d9945 100644
--- a/ext/bigdecimal/bigdecimal.c
+++ b/ext/bigdecimal/bigdecimal.c
@@ -1222,8 +1222,10 @@ BigDecimal_divide(Real **c, Real **res, Real **div, VALUE self, VALUE r)
*div = b;
mx = a->Prec + vabs(a->exponent);
- if (mx<b->Prec + vabs(b->exponent)) mx = b->Prec + vabs(b->exponent);
- mx =(mx + 1) * VpBaseFig();
+ if (mx < b->Prec + vabs(b->exponent)) mx = b->Prec + vabs(b->exponent);
+ mx++; /* NOTE: An additional digit is needed for the compatibility to
+ the version 1.2.1 and the former. */
+ mx = (mx + 1) * VpBaseFig();
GUARD_OBJ((*c), VpCreateRbObject(mx, "#0"));
GUARD_OBJ((*res), VpCreateRbObject((mx+1) * 2 +(VpBaseFig() + 1), "#0"));
VpDivd(*c, *res, a, b);