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size(clustername,2) returns the number of members in the enum. ENUM is useful when making "state machines" and other situations where assigning sequence numbers to a series of variable names is desired.
Example: Traffic Light States
This example demonstrates how to use the Enum statement to define traffic light states and handle them using a Select Case statement.
Enum traffic_light: red, yellow, green
current_state = traffic_light->yellow
select case current_state
case traffic_light->red
print "Stop"
case traffic_light->yellow
print "Get Ready"
case traffic_light->green
print "Go"
case else
print "Unknown State"
end select
// number of members of the enum, three in this case
print 'Number of members: '; size(traffic_light,2)
Explanation
This example creates an Enum for traffic light states and uses a Select Case statement to print messages based on the current state of the traffic light. Each case corresponds to a different state defined in the enum.
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