Ticket #506 (Invalid)Sun Feb 28 14:58:42 UTC 2021

DDE C compiler generates spurious warning

Details by Dave Higton (1515):

When building the AcornSSL module, the DDE 30 and 30a C compiler generates a spurious warning at two points, in the api_getpeername and api_getsockname functions. The warning is:

Warning variable ‘in’ declared but not used

The code in both cases is like this (pruned for clarity):

api_getpeername(, struct sockaddr *name,)
{
struct sockaddr_in *in = (struct sockaddr_in *)name;
dprintf((“api”, “getpeername %s on %p\n”, inet_ntoa(in->sin_addr), (void *)h));
}

The error line is shown to be that of the closing brace.

Clearly the variable ‘in’ has been used, so the warning should not be generated.