def-c-typedef

Arguments: name &rest slots

This macro is obsolete and kept for backward compatibility only. Please use def-foreign-type.

This macro returns name if name is a symbol or (car name) if name is a list but this macro is used for its side effects. The side effect is to define a C type to Lisp. (The list of allowable types is the same as given in the definition of def-c-type. It includes structures and unions as well as ordinary types.) However, unlike the related macro def-c-type, no accessor functions and no constructor functions are defined. You cannot even use make-cstruct to create an object of the defined type. The purpose of def-c-typedef is to provide building blocks which will be used by def-c-type (which does create accessors and a constructor as side effects) without paying the overhead of defining the additional functions. def-c-typedef takes the same arguments as def-c-type. (If the name argument is a list, only the first element, which must be a symbol, is used. A list is accepted for compatibility with def-c-type.)

See ftype.htm for information on foreign types in Allegro CL and foreign-functions.htm for general information on foreign functions in Allegro CL.

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Created 2019.8.20.