Quickest Way to Test If Item Is In a List?

[Cyrix]

What is the quickest way to test if an item (such as a string) is in a list of such items?

Currently I am using loop + IF, but this is super slow for large lists.

Is there a more efficient way?

Thanks.

 

[rostonix]

http://zennolab.com/discussion/threads/search-in-list-and-tables-via-c-macro.10733/