Function seek

pdal/util/OStream.hpp:89–90

    PDAL_EXPORT operator bool ()
        { return (bool)(*m_stream); }
    PDAL_EXPORT void seek(std::streampos pos)
        { m_stream->seekp(pos, std::ostream::beg); }
    PDAL_EXPORT void put(const std::string& s)
        { put(s, s.size()); }
    PDAL_EXPORT void put(const std::string& s, size_t len)