Method size

src/Abyss/FileSystem/InputStream.cpp:9–18

InputStream::InputStream(InputStream &&other) noexcept : std::istream(other._streamBuff.get()), _streamBuff(std::move(other._streamBuff)) {}

std::streamsize InputStream::size() {
    if (const auto *sizeable = dynamic_cast<SizeableStreambuf *>(_streamBuff.get()))
        return sizeable->size();

    const auto curPos = tellg();
    seekg(0, end);
    const auto endPos = tellg();
    seekg(curPos, beg);
    return endPos;
}

} // namespace Abyss::FileSystem