Boolean values: Difference between revisions

=={{header|Ursa}}==

Ursa has the boolean data type which can be declared using the declare (or decl) function.

<lang ursa>decl boolean bool</ursa>

Boolean values can be set to either true or false, or the result of an expression.

<lang ursa>set bool true

# same as

set bool (= 2 2)

</lang>

or

<lang ursa>set bool false

# same as

set bool (not (= 2 2))

</lang>