Optimization of the alignment calculation using the Cdr::alignment() method does not work

[i-and]

In version 2.2.1, all serialization and deserialization methods perform the following sequence of actions:

{
  size_t align = alignment(sizeof(SomeType));
  last_data_size_ = sizeof(SomeType);
  make_alignment(align);
  ...
}

Since last_data_size_ is zeroed in the make_alignment() method, subsequent alignment() calls will be performed with the full calculation of the expression:

inline size_t alignment(size_t data_size) const
{
    return data_size > last_data_size_ ? (data_size - ((offset_ - origin_) % data_size)) & (data_size - 1) : 0;
}

Apparently, optimization based on the use of last_data_size_ does not work in this case.