Cross reference for include/er_UD_errors.h of index.

# File include/er_UD_errors.h

      $Revision: 1.1 $

      Radix tree (rx).  er_PM_errors.h - definition of errors for the radix module

      Status: NOT REVUED, TESTED,

      Design and implementation by: Andrei Robachevsky

Included in: | modules/er/er_facilities.h

## Preprocessor definitions

`#define UD_TAG " "`

`#define UD_OK`

`#define UD_MEM`

`#define UD_SQL`

`#define UD_FS`

`#define UD_BUG`

## Typedef UD_err_code_t

`typedef enum {...} UD_err_code_t`

`enum` |
`{` |
`LOW_UD_OK;` |
`LOW_UD_MEM;` |
`LOW_UD_SQL;` |
`LOW_UD_FS;` |
`LOW_UD_BUG;` |
`}` |