# RXS_libLEExists()

Used to check the existence of a library entry in the library list before using [RXS_addLibLE()](https://isupport.katointegrations.com/rxs/2.x/rxs_addlible.md) to add one.

## Subprocedure Prototype

### IBM i V5R4+

| Field | Description |
|---|---|
| `     D RXS_libLEExists...      D                 pr             3  0` | Returns '0' if the library is not in the library list, otherwise returns its position. |
| `     D  pLib                         10a   value` | **Required** The name of the target library. |
| `     D  pLibType                     10a   value options(*nopass)` | **Default Value:** `*USER` |