CTYPECAST CTYPECAST Cast FreeMat Structure to C Structure

Usage

The ctypecast function is a convenience function for ensuring that
a FreeMat structure fits the definition of a C struct (as defined
via ctypedefine.  It does so by encoding the structure
to a byte array using ctypefreeze and then recovering it using
the ctypethaw function.  The usage is simply

   s = ctypecast(s,typename)

where s is the structure and typename is the name of the
C structure that describes the desired layout and types for elements
of s.  This function is equivalent to calling ctypefreeze
and ctypethaw in succession on a FreeMat structure.
