30 Localization library [localization]

30.3 Locales [locales]

30.3.3 Convenience interfaces [locale.convenience]

30.3.3.2 Character conversions [conversions.character]

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template<class charT> charT toupper(charT c, const locale& loc);
1
#
Returns: use_facet<ctype<charT>>(loc).toupper(c).
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template<class charT> charT tolower(charT c, const locale& loc);
2
#
Returns: use_facet<ctype<charT>>(loc).tolower(c).