writing and reading problem

[anda_skoa]

I would suggest to test the invidual pieces.
First check that the size is written and read correctly, because there is no point in continuing if it is not.

Then check writing and reading a map with one entry, and so on.

Btw, why such a complicated way of writing the map size? If you just write the map size's value you can also more easily iterate over that range when reading, no?

Cheers,
_

[ChrisW67]

I can't read true for writing code.Where is my problem?

You have failed to explain what you are expecting to see, what you are seeing, why that is wrong, what you done to diagnose it etc.