Freeing information from memory

CALL CDFREE (PATH,LSUP,MASK,KEYS,CHOPT,IRC*)

PATH

Character string describing the pathname

LSUP

Address of Keys bank(s) KYDB

MASK

Integer vector indicating which elements of KEYS are significant for selection.

KEYS

Vector of keys

CHOPT

Character string with any of the following characters

'A'

trust LSUP address if non-zero

'D'

drop the Data bank(s) supported at link 1 of Key bank(s)

'K'

drop the Key bank(s) as well as Data bank(s)

IRC

Integer return code  

0

Normal completion

51

Illegal character option

52

No access to the Key banks

53

Pathname not found in the RZ directory

54

Pathname not matched to that found in bank NODB

55

Too many keys with option M

56

Illegal Key option

57

Illegal pathname

58

Database structure in memory clobbered

59

Some of the expected key banks not found

Routine CDFREE declares the given data bank(s) as candidates to be dropped in case space is needed in the database division. Optionally it deletes the Data bank(s) (with option D) or the Keys as well as the Data bank(s) (with option K).

If the pathname begins with a % character then it is assumed to be an alias and is automatically translated by the internal HEPDB routines.