1.5 Designator classes
pointer-value
Open generic function
Summary
Dereferences a c-typed pointer using its encapsulated raw C address.
Signature
pointer-value C-typed-pointer #key index => object
Arguments
- c-typed-pointer
- An instance of
<C-statically-typed-pointer>
Values
- object
- An instance of
<object>.
Library
c-ffi
Module
c-ffi
Description
Dereferences c-typed-pointer using its encapsulated raw C address, and returns a Dylan object representing the object at that address. If you supply index, the pointer is treated as a pointer to an array, and the function returns the appropriate element indexed by the correct unit size.
It is an error if C-typed-pointer does not point to a valid address or is a null pointer.
See also
pointer-value-setter, page 24.