ssize_t Reader::nextSize()

in xar/FileUtilTest.cpp [46:61]

• 16 lines of code
• 4 McCabe index (conditional complexity)

ssize_t Reader::nextSize() {
  if (spec_.empty()) {
    throw std::runtime_error("spec empty");
  }
  ssize_t n = spec_.front();
  spec_.pop_front();
  if (n <= 0) {
    if (n == -1) {
      errno = EIO;
    }
    spec_.clear(); // so we fail if called again
  } else {
    offset_ += n;
  }
  return n;
}