---
title: "gss_add_oid_set_member(_:_:_:)"
framework: GSS
role: symbol
role_heading: Function
platforms: [iOS 5.0+, iPadOS 5.0+, Mac Catalyst 13.1+, macOS 10.7+, visionOS 1.0+]
path: "gss/gss_add_oid_set_member(_:_:_:)"
---

# gss_add_oid_set_member(_:_:_:)

Adds an object identifier into an OID set.

## Declaration

```swift
func gss_add_oid_set_member(_ minor_status: UnsafeMutablePointer<OM_uint32>, _ member_oid: gss_const_OID, _ oid_set: UnsafeMutablePointer<gss_OID_set>) -> OM_uint32
```

## Parameters

- `minor_status`: A pointer to the secondary status result that provides additional information in case of failure.
- `member_oid`: The object identifier to be added.
- `oid_set`: A pointer to the set to which the new OID should be added. Use doc://com.apple.gss/documentation/GSS/gss_create_empty_oid_set(_:_:) to create a new set.

## Return Value

Return Value A status code set to GSS_S_COMPLETE on success. See Function Status for a complete enumeration of status outputs.

## Discussion

Discussion If the OID already exists in the set, there is no action taken. Otherwise, the function adds the OID to the end of the set. Because the function adds the OID doesn’t copy it, the member_oid pointer must remain stable while the oid_set is in use.

## See Also

### Creation and Release

- [gss_create_empty_oid_set(_:_:)](gss/gss_create_empty_oid_set(_:_:).md)
- [gss_release_oid_set(_:_:)](gss/gss_release_oid_set(_:_:).md)
- [gss_release_oid(_:_:)](gss/gss_release_oid(_:_:).md)