|
24 System Construction 24.1 System Construction Concepts 24.1.2 Features 24.1.2.1 Feature Expressions
24.1.2.1.1 Examples of Feature Expressions
For example, suppose that
in implementation A, the features spice and perq are present,
but the feature lispm is not present;
in implementation B, the feature lispm is present,
but the features spice and perq are
not present;
and
in implementation C, none of the features spice, lispm, or perq are
present.
The next figure shows some sample expressions, and how they would be
read2 in these implementations.
|