It was in a context that means that I (the reader) didn't read or write, from or to the file yet. So its context maps to this meaning:
but you have yet to read data from or write data to a file using these types.
But omitting not, makes it like
but you haven't yet read data from or write data to a file using these types.
I did write and read, which I'm totally sure the author didn't mean, can anyone elaborate on this, please?No 'not' has been omitted. If you have yet to do something, you have not done it yet.
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Mohamed Elshawafyou have yet to read data from or write data to a file using these types.= You still have to read data ...