C++ ( C) 7- , ISO 646/ECMA-6. , C++ ISO 646: { } [ ] # \ ^ | ~. , , C++ : , , , ISO 646- , -ISO 646-.

, C++ .

<iso646.h> . C++ , <iso646.h> <ciso646> ++ .

( ) :

and, and_eq, bitand, bitor, compl, not, not_eq, or, or_eq, xor, xor_eq

%:include <iostream>

int main(int argc, char *argv<::>)
<%
    if (argc > 1 and argv<:1:> not_eq '\0') <%
        std::cout << "Hello " << argv<:1:> << '\n';
    %>
%>