On Sat, Jan 15, 2005 at 03:40:04PM +0530, Nakul Aggarwal wrote:
> Hi,
> Whenever i try to compile net-snmp library using g++ ...it gives
> folowoing errors :
>
> ========================ERROR=============
> -- conflicting types for `struct oid'
> /usr/include/net-snmp/types.h:47: previous declaration as `typedef
> u_long oid'
> oid_defn.h:14: field `Oid' has incomplete type
> initializers_oid.cpp: In function `void initialize (oid *)':
> initializers_oid.cpp:11: `struct oid' has no member named `Oid'
> initializers_oid.cpp:11: `struct oid' has no member named `Oid'
> initializers_oid.cpp:12: `struct oid' has no member named `Oid'
> ==============END========================
Here the compiler complains since
struct oid { /* whatever */ };
is indeed incompatible with
typedef u_long oid; /* From include/net-snmp/types.h */
and then it goes on to say that the typedef lacks the member named Oid.
> Isnt Net-Snmp library compatible with C++ ?
I have never had any major problems :-)
> =================code for initializers_oid.cpp==========
> #include "oid_defn.h"
>
> void initialize (struct oid *given)
> {
> struct oid *op = given;
> init_snmp("asynchapp");
> //struct host ho = Router_struct.Ip;
> /* parse the oids */
> while (op->Name)
> {
> op->OidLen = sizeof(op->Oid)/sizeof(op->Oid[0]);
> if (!read_objid(op->Name, op->Oid, &op->OidLen))
> {
> snmp_perror("read_objid");
> exit(1);
> }
> op++;
> }
> }
> ================================
> while Oid_defn.h contains the standard struct OID defn of net-snmp
> library. i.e.
> struct oid {
> const char *Name;
> oid Oid[MAX_OID_LEN];
> int OidLen;
> };
This is the part I utterly fail to comprehend - what netsnmp file provides
this definition of struct oid? I fail to find it and would like to get a
reference. (No, I have no file named oid_defn.h)
Oh yes, the above struct would be erraneous even in isolation since it tries
to recursively define the member Oid as an array of the incomplete type
struct oid.
/MF
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