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Change code example for sec-type-variable-operations #1345

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Change code example for sec-type-variable-operations #1345

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12 changes: 5 additions & 7 deletions p4-16/spec/P4-16-spec.adoc
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Expand Up @@ -4973,21 +4973,19 @@ bool b2 = x == y; // no cast needed
[#sec-type-variable-operations]
=== Operations on types that are type variables

Because functions, methods, control, and parsers can be generic,
Because functions and methods can be generic,
they offer the possibility of declaring values with types that
are type variables:

[source,p4]
----
control C<T>() {
apply {
T x; // the type of x is T, a type variable
}
void f<T>() {
T x; // the type of x is T, a type variable
}
----

The type of such objects is not known until the control is
instantiated with specific type arguments.
The type of such objects is not known until the function is
specialized with specific type arguments.

Currently the only operations that are available for such values are
assignment (explicit through `=`, or implicit, through argument passing).
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