Question

My code compiles without error, but what does this mean?

 etherate.cpp:432:11: warning: deleting array ‘unsigned char broadMAC [6]’ [enabled by default]

Its from this line, where I am deleting an unsigned char array;

delete [] broadMAC;

Is it OK to leave this as it is, if not, how could I improve upon this?

Thanks.

UPDATE

How is broadMAC declared?

From about 10 lines previous;

unsigned char broadMAC[6] = {destMAC[0], destMAC[1], destMAC[2], destMAC[3], destMAC[4], destMAC[5]};

destMAC is also an unsigned char array with values stored inside it.
I needed to copy them out, do something with destMAC, then restore the original values; so I have declared broadMAC and wish to delete it after.

Answer 1

G++ allows to enable and disable many warnings (e.g. -Wctor-dtor-privacy, -Woverloaded-virtual, -W...) by specifying them on the command line. Some warnings are enabled, without the need to do so on the command line, others must be explicitly requested.

So, some warnings are:

“enabled by default”

and some are:

“disabled by default”