[libstdc++] Patch: std_cwctype and iswblank

[Andreas Jaeger]

Mumit Khan <khan@NanoTech.Wisc.EDU> writes:

> Currently std_cwctype.h uses iswblank, which AFAIK is a GNU extension,

iswblank is part of ISO C99 and therefore no GNU extension.

Andreas
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 Andreas Jaeger
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