listmember/2—verify that an element is included in a list

The listmember/2 function verifies that an element is included in a list. The syntax for this function is as follows:

listmember($LIST,$ELEM)

listmember/2 arguments

Argument	Mode	Type	Description
`$LIST`	Input	LIST_OF ANY	Specifies the list in which the presence of an element is to be verified
`$ELEM`	Input	ANY	Specifies the element to be searched for within the list

Use the listmember/2 function to verify whether or not an element $ELEM occurs in list $LIST.

This primitive succeeds or fails depending on whether the element occurs in the list or not.

listmember/2 example

if ( listmember($E.mc_bad_slot_names,my_slot) ) ...

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