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Converting multi-byte to wide characters

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Hiya, I've been using the CRT function mbstowcs() to covert narrow to wide strings, but I was wondering if the C++ standard library provdes a way. IIRC std::ios provides narrow() and widen() methods, but they only accept single characters at a time. Is this what I'm going to have to use? Thanks for any help :)

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The ctype facet of a locale has narrow() and widen() functions that accept strings of arbitrary length. Use std::use_facet<>() to get at the locale facet.

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