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author | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-26 15:49:47 +0000 |
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committer | mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2011-07-26 15:49:47 +0000 |
commit | dca0b4177706c2cd9cda0d38af1b82752982e158 (patch) | |
tree | 127949dd094e102c5fde0dd73066c2e397134f34 /ext/bigdecimal | |
parent | 079fb8d4c369cfc7d450d6e4d02b112596dcb5ee (diff) | |
download | ruby-dca0b4177706c2cd9cda0d38af1b82752982e158.tar.gz |
* ext/bigdecimal/lib/bigdecimal/util.rb (Rational#to_d):
zero or negative precision is error. fixes #5098.
[ruby-dev:44210]
* test/bigdecimal/test_bigdecimal_util.rb: add test for the above
change.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@32680 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/bigdecimal')
-rw-r--r-- | ext/bigdecimal/lib/bigdecimal/util.rb | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/ext/bigdecimal/lib/bigdecimal/util.rb b/ext/bigdecimal/lib/bigdecimal/util.rb index 1e4bbbb596..b27e64c511 100644 --- a/ext/bigdecimal/lib/bigdecimal/util.rb +++ b/ext/bigdecimal/lib/bigdecimal/util.rb @@ -95,11 +95,11 @@ class Rational < Numeric # # => #<BigDecimal:1a52bd8,'0.3142857142 8571427937 0154144999 105E1',45(63)> # r.to_d(3) # # => #<BigDecimal:1a44d08,'0.314E1',18(36)> - def to_d(nFig=0) - num = self.numerator.to_s - if nFig<=0 - nFig = BigDecimal.double_fig*2+1 + def to_d(precision) + if precision <= 0 + raise ArgumentError, "negative precision" end - BigDecimal.new(num).div(self.denominator,nFig) + num = self.numerator + BigDecimal(num).div(self.denominator, precision) end end |