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### Card

#### Synopsis

    function Card (S: any_set): Integer;

#### Description

The function `Card (S)` returns the number of elements in the set `S`.

#### Conforming to

`Card` is an ISO 10206 Extended Pascal extension.

#### Example

    program CardDemo;
    var
      Foo: set of 1 .. 100;
    begin
      Foo := [1, 2, 3, 5, 1, 1, 1, 2, 2, 2, 3, 3, 5, 5];  { four elements }
      WriteLn ('foo consists of ', Card (Foo), ' elements')
    end.

#### See also

set