std::isupper(std::locale)

Header: <locale>

Checks if the given character is classified as an uppercase alphabetic character by the given locale’s std::ctype facet.

# Declarations

template< class CharT >
bool isupper( CharT ch, const locale& loc );

# Parameters

# Return value

Returns true if the character is classified as uppercase, false otherwise.

# Example

#include <iostream>
#include <locale>
 
int main()
{
    const wchar_t c = L'\u00de'; // LATIN CAPITAL LETTER THORN
 
    std::locale loc1("C");
    std::cout << std::boolalpha
              << "isupper('Þ', C locale) returned " << std::isupper(c, loc1) << '\n'
              << "islower('Þ', C locale) returned " << std::islower(c, loc1) << '\n';
 
    std::locale loc2("en_US.UTF8");
    std::cout << "isupper('Þ', Unicode locale) returned "
              << std::isupper(c, loc2) << '\n'
              << "islower('Þ', Unicode locale) returned "
              << std::islower(c, loc2) << '\n';
}

# See also