Cyrillic strings in c++?

Question

C++ / C#

Why is the error "character too large for enclosing character literal type" displayed when using Cyrillic, but everything is fine in Latin? Why does Cyrillic take up more space?

#include <iostream>
#include <cstdlib>

using namespace std;

int main() {

    char m[] = {'э', 'м'};

    return 0;
}

Answer 1

Because Cyrillic, like all utf-8 in general, takes 2 bytes in memory in most versions of compilers, while Latin takes one byte, which corresponds to the basic numeric type in memory.

Answer 2

setlocale(LC_ALL, "ru");