Right. In addition to the pragma, you'd also need to tell Ada what display's parameters were, so the complete form would probably look something like this: 

  procedure display(Value : Integer);
  pragma Import(C, display);

I say "something like this" because we haven't talked about how to send data types between languages. Let's do that now for C, a very common language; handling data types for other languages is handled similarly.

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David A. Wheeler (dwheeler@ida.org)