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gets
the current group access list of the current user process and stores it
in the array The parameter indicates the number of entries that may
be placed in returns the actual number of groups returned in No more
than will ever be returned. If is 0, returns the number of groups without
modifying the array.
A successful call returns the number
of groups in the group set. A value of -1 indicates that an error occurred,
and the error code is stored in the global variable
The possible
errors for are: The argument is smaller than the number of groups in
the group set. The argument specifies an invalid address.
The
function call appeared in
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