Can you tell me how to display symbols in national languages?

[Keyn1]

[EroMrinin134]

If you are on Windows, then you may use:

module module_name @if(env::WIN32);
import std::os::win32;

const Win32_UINT UTF8_CT_ID = 65001;

extern fn Win32_BOOL set_console_input_cp(Win32_UINT cp_id) @cname("SetConsoleCP");
extern fn Win32_BOOL set_console_output_cp(Win32_UINT cp_id) @cname("SetConsoleOutputCP");


module module_name;
import std;

fn void main(String[] args)
{
	// Set UTF-8 console mode on Windows.
	$if env::WIN32:
    	set_console_input_cp(UTF8_CT_ID);
    	set_console_output_cp(UTF8_CT_ID);
    $endif
    
    io::printn("Ё"); // Works fine.
}

[Book-reader]

If you're using c3 0.7.9 this gets done automatically, but only if the main function is fn int main(String[] args), fn void main(String[] args), or fn int main(int argc, char** argv). It doesn't get done automatically if your main function is fn int main() or fn void main() so this fix would still be needed in that case. #2814 will fix it so it will be done automatically for all the types of main function, but since 0.7.9 has already been released it will take until 0.7.10 for it to be fully resolved unless 0.7.9 gets edited to include the fix.