libstdc++/4458: std::ctype<char>::is doesn't call do_is as required by ISO 14882

[rodrigc@gcc.gnu.org]

Synopsis: std::ctype<char>::is doesn't call do_is as required by ISO 14882

State-Changed-From-To: feedback->closed
State-Changed-By: rodrigc
State-Changed-When: Mon Jan 21 20:11:31 2002
State-Changed-Why:
    No feedback.

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