Library /sys$common/syshlp/helplib.hlb  —  RTL Routines, LIB$  LIB$FREE_EF
    The Free Event Flag routine frees a local event flag previously
    allocated by LIB$GET_EF or by LIB$RESERVE_EF. LIB$FREE_EF is the
    complement of LIB$GET_EF.

    Format

      LIB$FREE_EF  event-flag-number
Additional Information: explode extract
Returns Argument
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