What is location list?

Hello,

Looked at :help for new-location-list, location-list-window, lopen etc.
but am still clueless about what location list is.

No matter what I tried, :lopen always reports E776.

What exactly is "list of positions in files" and how can I end up with a
non-empty set of locations?

Thanks,

--Suresh

--
--
You received this message from the "vim_use" maillist.
Do not top-post! Type your reply below the text you are replying to.
For more information, visit http://www.vim.org/maillist.php

---
You received this message because you are subscribed to the Google Groups "vim_use" group.
To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscribe@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.