Using read and write with APvector class

I would like to create a binary file using the write but using an AP vector of structures. I can do this with a regular array of structures but there is an error when I try to use the ap vector class.
I use write((unsigned char*)arrayname, count*sizeof(structurename))
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This is because "arrayname" is not an array.  it is an object.  it is an object that acts like an array, but is not an array.  When you try convert a real array to a character array using (unsigned char *) it allows the array to be treated like an array of bytes, i.e. as raw data.  But when you do that to an array object (vector object) it allows the object itself to be treated as raw data, but not the data stored in the array object.

You will have to iterate through each item stored in the array and write out each item, one-at-a-time.

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