HELP virtual ENV

[jacktea]

'cat_Application' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit

Any help??

[JonB]

@jacktea
Depends what code you have written and what compiler you are using. Don't know what it has to do with "virtual ENV". But if you Google for has no out-of-line virtual method definitions you'll find hits for it. You may find that your issue is per https://forum.qt.io/topic/68903/qt-creator-clang-weak-vtable-warnings-and-__declspec-dllexport, maybe (e.g. need to define destructor explicitly).

[jacktea]

@JonB Much APPRECIATED Mr. Jon

[jacktea]

This post is deleted!

[jacktea]

@JonB

Windows 64

Error :

Use of undeclared identifier

case AF_INET:
inet_ntop(AF_INET, &(((struct sockaddr_in *)sa)->sin_addr), host, salen);
break;

case AF_INET6:
    inet_ntop(AF_INET6, &(((struct sockaddr_in6 *)sa)->sin6_addr), host, salen);
    break;