std::isalpha(std::locale)
Min standard notice:
Header: <locale>
Checks if the given character is classified as an alphabetic character by the given locale’s std::ctype facet.
# Declarations
template< class CharT >
bool isalpha( CharT ch, const locale& loc );
# Parameters
ch: characterloc: locale
# Return value
Returns true if the character is classified as alphabetic, false otherwise.
# Example
#include <iostream>
#include <locale>
int main()
{
const wchar_t c = L'\u042f'; // cyrillic capital letter ya
std::locale loc1("C");
std::cout << "isalpha('Я', C locale) returned "
<< std::boolalpha << std::isalpha(c, loc1) << '\n';
std::locale loc2("en_US.UTF8");
std::cout << "isalpha('Я', Unicode locale) returned "
<< std::boolalpha << std::isalpha(c, loc2) << '\n';
}