Create an object at a given address: Difference between revisions

</pre>

=={{header|Julia}}==

Julia has pointer access functions for interface with C code. Because the

address of a Julia integer variable within the VM may change when it is

re-assigned a new value, an array of a single integer is used below.

<lang julia>

function unsafepointers()

intspace = [42]

address = pointer_from_objref(intspace)

println("The address of intspace is $address")

anotherint = unsafe_pointer_to_objref(address)

println("intspace is $(intspace[1]), memory at $address, reference value $(anotherint[1])")

intspace[1] = 123456

println("Now, intspace is $(intspace[1]), memory at $address, reference value $(anotherint[1])")

end

unsafepointers()

</lang>

{{output}}<pre>

The address of intspace is Ptr{Void} @0x000000000729f130

intspace is 42, memory at Ptr{Void} @0x000000000729f130, reference value 42

Now, intspace is 123456, memory at Ptr{Void} @0x000000000729f130, reference value 123456