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* math.c (math_atanh): Fix bug for Math.atanh(+/-1). It now returns +-Infinity. [ruby-core:26028]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25279 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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marcandre 2009-10-10 05:56:07 +00:00
parent 8571bdbd67
commit 243400fbed
2 changed files with 5 additions and 1 deletions
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ChangeLog
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@ -1,3 +1,8 @@
Sat Oct 10 14:55:55 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* math.c (math_atanh): Fix bug for Math.atanh(+/-1). It now returns
+-Infinity. [ruby-core:26028]
Sat Oct 10 14:09:40 2009 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* thread.c (rb_threadptr_execute_interrupts_rec, rb_threadptr_raise):

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math.c
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@ -298,7 +298,6 @@ math_atanh(VALUE obj, VALUE x)
d0 = RFLOAT_VALUE(x);
d = atanh(d0);
domain_check(d0, d, "atanh");
infinity_check(x, d, "atanh");
return DBL2NUM(d);
}