Change all accented letters to normal letters in C++

Question

The question

How can you change all accented letters to normal letters in C++ (or in C)?

By that, I mean something like eéèêaàäâçc would become

Answer 1

char* removeAccented( char* str ) {
    char *p = str;
    while ( (*p)!=0 ) {
        const char*
        //   "ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ"
        tr = "AAAAAAECEEEEIIIIDNOOOOOx0UUUUYPsaaaaaaeceeeeiiiiOnooooo/0uuuuypy";
        unsigned char ch = (*p);
        if ( ch >=192 ) {
            (*p) = tr[ ch-192 ];
        }
        ++p; // http://stackoverflow.com/questions/14094621/
    }
    return str;
}