The following attempts to show the relation of the various constants
used for mapping APR Status codes.
0
20,000 APR_OS_START_ERROR
+ APR_OS_ERRSPACE_SIZE (50,000)
70,000 APR_OS_START_STATUS
+ APR_OS_ERRSPACE_SIZE - APR_UTIL_ERRSPACE_SIZE (30,000)
100,000 APR_UTIL_START_STATUS
+ APR_UTIL_ERRSPACE_SIZE (20,000)
120,000 APR_OS_START_USERERR
+ 10 x APR_OS_ERRSPACE_SIZE (50,000 * 10)
620,000 APR_OS_START_CANONERR
+ APR_OS_ERRSPACE_SIZE (50,000)
670,000 APR_OS_START_EAIERR
+ APR_OS_ERRSPACE_SIZE (50,000)
720,000 APR_OS_START_SYSERR
