<name> ::= OBJECT IDENTIFIER

   typedef ASN1OBJID <name>;

   typedef ASN1TObjId ASN1T_<name>;

typedef struct {
   OSUINT32 numids; /* number of subidentifiers */
   OSUINT32 subid[ASN_K_MAXSUBIDS];/* subidentifier values */
} ASN1OBJID;

If an OBJECT IDENTIFIER type is configured to be dynamic either through use of the -dynamic command-line option or through use of the dynamic storage configuration variable, the following type is used in the generated code:

Generated C code:

   typedef ASN1DynOBJID <name>;

Generated C++ code:

   typedef ASN1TDynObjId ASN1T_<name>;

In this case, different base types are used for C and C++. The difference between the two is the C++ version includes constructors that initialize the value and methods for setting the value.

The ASN1DynOBJID type (i.e., the type used in the C mapping) is defined in the asn1type.h header file as follows:

   typedef struct ASN1DynOBJID {
      OSBOOL memAllocated;
      OSUINT16 numids;
      OSUINT32* pSubIds;
   } ASN1DynOBJID;

The ASN1TDynObjId type is defined in the ASN1TDynObjId.h header file as follows:

   struct ASN1TDynObjId : public ASN1DynOBJID {
      bool mbStdMem;     
      ...
   } ASN1TDynObjId;

Note that memory management of the array containing the sub-identifiers is the responsibility of the user. The memAllocated flag and mbStdMem flag may be used to control how some memory free operations are done. memAllocated is typically set by the decoder to indicate memory was allocated using a context. If this is set, the generated memory free function will release this memory using the context-based memory free function. In the case of C++, the mbStdMem flag may be set in a constructor or assignment operation when assigning an OID value to the type. In this case, memory is allocated using the standard C++ new operator and released with delete.