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* missing/lgamma_r.c (loggamma): return 0 for 1 and 2.

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* test/ruby/test_math.rb: accept errors by functions under missing/.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15708 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2008-03-06 05:53:03 +00:00
parent d2797c33bd
commit d1cd806372
3 changed files with 10 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
Thu Mar 6 14:46:08 2008 Tanaka Akira <akr@fsij.org>
* missing/lgamma_r.c (loggamma): return 0 for 1 and 2.
* test/ruby/test_math.rb: accept errors by functions under missing/.
Thu Mar 6 14:29:44 2008 NARUSE, Yui <naruse@ruby-lang.org> Thu Mar 6 14:29:44 2008 NARUSE, Yui <naruse@ruby-lang.org>
* transcode.c (rb_str_transcode_bang): set coderange. * transcode.c (rb_str_transcode_bang): set coderange.

2
missing/lgamma_r.c
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@ -34,6 +34,8 @@ loggamma(double x) /* the natural logarithm of the Gamma function. */
{ {
double v, w; double v, w;
if (x == 1.0 || x == 2.0) return 0.0;
v = 1; v = 1;
while (x < N) { v *= x; x++; } while (x < N) { v *= x; x++; }
w = 1 / (x * x); w = 1 / (x * x);

3
test/ruby/test_math.rb
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@ -2,7 +2,8 @@ require 'test/unit'
class TestMath < Test::Unit::TestCase class TestMath < Test::Unit::TestCase
def check(a, b) def check(a, b)
assert_in_delta(a, b, Float::EPSILON * 4) err = [Float::EPSILON * 4, [a.abs, b.abs].max * Float::EPSILON * 256].max
assert_in_delta(a, b, err)
end end
def test_atan2 def test_atan2