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std::toupper(std::locale)

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Revision as of 23:10, 31 May 2013 by P12bot (Talk | contribs)

Defined in header <locale>
template< class charT >
charT toupper( charT ch, const locale& loc );

Converts the character ch to uppercase if possible, using the conversion rules specified by the given locale's std::ctype facet.

Contents

Parameters

ch - character
loc - locale

Return value

Returns the uppercase form of ch if one is listed in the locale, otherwise return ch unchanged.

Notes

Only 1:1 character mapping can be performed by this function, e.g. the uppercase form of 'ß' is (with some exceptions) the two-character string "SS", which cannot be obtained by std::toupper.

Possible implementation

template< class charT >
charT toupper( charT ch, const std::locale& loc ) {
    return std::use_facet<std::ctype<charT>>(loc).toupper(ch);
}

Example

See also

converts a character to lowercase using the ctype facet of a locale
(function template) [edit]
converts a character to uppercase
(function) [edit]
converts a wide character to uppercase
(function) [edit]