7.75.2 IF_STATUS Comments / Warnings

• The following table matches the values specified on the IS or IS_NOT parameters with the actual I/O return codes. For more information, refer to I/O Return Codes:

Parameter Value I/O Return Code *OKAY 'OK' *VALERROR 'VE' *ERROR 'ER' *NORECORD 'NR' *ENDFILE 'EF' *BEGINFILE 'BF' *NOTEQUALKEY 'NE' *EQUALKEY 'EQ'

• IF_STATUS does NOT check the value of #IO$STS. IF_STATUS simply returns the status of the last database I/O command. In many cases this will be the same as IF COND(#IO$STS *EQ {Some Value}). However it should be noted that in the following cases these statements will be different:

• When #IO$STS is being set through an Output mapping of a MthRoutine.

• When #IO$STS is being set through an Output mapping of a SubRoutine.

• When #IO$STS is being used in the TO_GET parameter of a USE command.

• When #IO$STS is EXCHANGE'ed from another program/function.