The Match Condition Values routine checks to see if a given
    condition value matches a list of condition values that you
    supply.

    Format

      LIB$MATCH_COND  match-condition-value ,compare-condition-value

                      ,...

1  –  Returns

    OpenVMS usage:longword_unsigned
    type:         longword (unsigned)
    access:       write only
    mechanism:    by value

    A zero, if the input condition value did not match any condition
    value in the list, or i-1,  for a match between the first argument
    and the ith argument.

2  –  Arguments

 match-condition-value

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference

    Condition value to be matched. The match-condition-value argument
    is the address of an unsigned longword that contains this
    condition value.

 compare-condition-value

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference

    The condition values to be compared to match-condition-value.
    The compare-condition-value arguments are the addresses of the
    unsigned longwords that contain these condition values.