gistfile1.txt

#include <iostream>
#include <vector>
#include <sstream>
int main(int argc,char** argv)
{

    std::ostringstream out;
    char * str = "ABCD-";
    out.write(str,5);
    out.write(str,5);
    out.write(str,5);
    std::cerr << out.tellp() << std::endl;
    std::cerr << "seek 5" << std::endl;
    out.seekp(5, std::ios::beg);
    std::cerr << out.fail() << " " << out.good() << " " << out.eof() << std::endl ;
    std::cerr << out.tellp() << std::endl;
    std::cerr << "seek 15" << std::endl;
    out.seekp(15,std::ios::beg);
    std::cerr << out.fail() << " " << out.good() << " " << out.eof() << std::endl ;
    std::cerr << out.tellp() << std::endl;
    std::cerr << "seek 25" << std::endl;
    out.seekp(25, std::ios::beg);
    std::cerr << out.fail() << " " << out.good() << " " << out.eof() << std::endl ;
    std::cerr << out.tellp() << std::endl;
    std::cerr << "seek 10" << std::endl;
    out.seekp(10, std::ios::beg);
    std::cerr << out.fail() << " " << out.good() << " " << out.eof() << std::endl ;
    std::cerr << out.tellp() << std::endl;

    std::cerr << out.str() << std::endl;
    return EXIT_SUCCESS;

}

clang version 3.3 (179091)
Target: x86_64-apple-darwin12.3.0
Thread model: posix