C++ stringstream buffer sample

gistfile1.h

#include <iostream>
#include <sstream>
#include <vector>

typedef std::vector<char> Buffer;

void assign(std::stringstream& stream) {
    Buffer buffer;
    buffer.push_back('M');
    buffer.push_back('A');
    buffer.push_back('S');
    buffer.push_back('A');
    buffer.push_back('K');
    buffer.push_back('I');

    stream.str("");
    stream.clear();
    stream.write(&buffer.at(0), buffer.size());
}

int main(int argc, char* argv[]) {
    std::stringstream stream("masaki");
    std::cout << stream.str() << std::endl;

    assign(stream);
    std::cout << stream.str() << std::endl;

    return 0;
}