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c%2B%2B-annotations 13.02.02-1
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    #include <iostream>
    #include <fstream>
    #include <cstdlib>
    using namespace std;

    int main()
    {
        ofstream of("outfile");

        streambuf *buf = cout.rdbuf(of.rdbuf());
        cout << "To the of stream\n";
        system("echo hello world");
        cout << "To the of stream\n";
        cout.rdbuf(buf);
    }
    /*
        Generated output: on the file `outfile'

        To the of stream
        To the of stream

        On standard output:

        hello world
    */