FreeMat: CTYPEREAD Read a C Structure From File

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CTYPEREAD Read a C Structure From File

Section: FreeMat External Interface

# Usage

The `ctyperead` function is a convenience function for reading a C structure from a file. This is generally a very bad idea, as direct writing of C structures to files is notoriously unportable. Consider yourself warned. The syntax for this function is

       a = ctyperead(fid,'typename')

where `'typename'` is a string containing the name of the C structure as defined using `ctypedefine`, and `fid` is the file handle returned by the `fopen` command. Note that this form will read a single structure from the file. If you want to read multiple structures into an array, use the following form

       a = ctyperead(fid,'typename',count)

Note that the way this function works is by using `ctypesize` to compute the size of the structure, reading that many bytes from the file, and then calling `ctypethaw` on the resulting buffer. A consequence of this behavior is that the byte-endian corrective behavior of FreeMat does not work.