[Bug libstdc++/47913] [C++0x] improve ratio_add to overflow less often

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47913

Paolo Carlini <paolo.carlini at oracle dot com> changed:

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--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-02-27 
23:34:10 UTC ---
By the way, a couple of testcases, would not hurt.