[Openmcl-devel] How do I initialize an array of structs? (FFI)

David Steuber david at david-steuber.com
Sat Jan 8 00:17:13 PST 2005

Give this C fragment:

EventTypeSpec moonSpec[] = {{kEventClassCommand, kEventCommandProcess},
   {kEventClassWindow, kEventWindowClose}};

How do I initialize moonspec in the following rlet?

   (rlet ((nibref :<ibn>ib<r>ef)
          (mainspec :<e>vent<t>ype<s>pec
                    :event<c>lass #$kEventClassCommand
                    :event<k>ind #$kEventCommandProcess)
          (moonspec (:array :<e>vent<t>ype<s>pec 2)))

I tried doing it in the rlet until I found this:

" When the type is an array,  initforms  may  not be provided, because  
make-record   cannot initialize its values.  make-record   is also 
unable to initialize fields of a  struct   which are themselves   
struct   s. The user of   make-record   should set these values  by 
another means."

However, other means were not specified.  I haven't been able to tell 
what to pass to pref.


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