`ptr cint` or `var cint` depending on what the API describes. If it's supposed to be just "int passed as reference" `var cint` is better, if it's supposed to be "some safely allocated integer" than `ptr cint` is better.
For `ptr cint` you need to do `myint.addr` if you want to pass a stack allocated variable, for `var cint` you just pass an integer declared as a variable.
