[Pharo-users] uFFI ffiCall return value

[Tomaž Turk]

Dear all,

Should the method that calls Object>>#ffiCall: and variants always 
return the result of this call? For instance, in uFFI book, there is a 
method abs: defined as

FFITutorial class >> abs: n [
    ^ self ffiCall: #( int abs (int n) )
]

on page 16, however

FFITutorial >> abs: n [
    self ffiCall: #( int abs (int n) )
]

on page 52 doesn't have an explicit return ^. The book, however, in most 
of the examples uses the explicit return. What is the recommended 
approach?

Thanks,
Tomaz