libostd/examples/stream2.cc

#include <ostd/algorithm.hh>
#include <ostd/string.hh>
#include <ostd/io.hh>

using namespace ostd;

int main() {
    writeln("writing sample file...");

    file_stream wtest{"test.txt", stream_mode::WRITE};

    std::string smpl =
        "This is a test file for later read.\n"
        "It contains some sample text in order to see whether "
        "things actually read correctly.\n\n\n"
        ""
        "This is after a few newlines. The file continues here.\n"
        "The file ends here.\n";

    copy(iter(smpl), wtest.iter());
    wtest.close();

    file_stream test{"test.txt"};

    writeln("## WHOLE FILE READ ##\n");

    auto ts1 = make_string(test.iter());
    writefln("-- str beg --\n%s-- str end --", ts1);

    test.seek(0);

    writeln("\n## PART FILE READ ##\n");

    auto ts2 = make_string(test.iter().take(25));
    writefln("-- str beg --\n%s\n-- str end --", ts2);

    return 0;
}