#include <bits/stdc++.h>
using namespace std;

string convert(char* a) {
    return string(a);
}

void test() {
    function<string(char*)> convert_client_message = [&](char* request_char_buffer) -> string {
        string converted_client_message(request_char_buffer);

        return converted_client_message;
    };

    char read_buffer[128000];
    read_buffer[0] = 'a';
    read_buffer[1] = 'b';
    read_buffer[2] = 'c';

    string a = convert_client_message(read_buffer);
    cout << a << endl;
}

int main() {
    test();
    return 0;
}