Bugs found while writing specs

Our policy of dealing with bugs found in MRI

• Ruby-Core must be notified
• Use #ruby_bug guard for the spec code that breaks due to MRI bug
• Add the bug to this page below
• MRI specific bug should be filed (optional, but highly desirable)

Bugs in the Complex library

Incompatible changes to the Math module

Complex modifies the Math library in a way that breaks compatibility in many ways.

1   Math.log("10") # => 2.30258509299405
2   require "complex" 
3   Math.log("10") # => raises NoMethodError: undefined method `polar' for "10":String

Running the Math specs after the Complex specs, exposes a total of 57 errors/failures.

bin/mspec -t r spec/ruby/1.8/library/complex/ spec/ruby/1.8/core/math/

...

77 files, 441 examples, 985 expectations, 40 failures, 17 errors

The following patch fixes these bugs: http://pastie.caboo.se/197522.txt