AW: AW: [lwip-users] ioctl() plus compiler warnings/errors

[Zschocke, Florian]

address@hidden wrote on Dienstag, 18. Februar 2003 13:40:

> But what if you define 'c' as being a 'unsigned char'? If you
> are using it as a set of flags, this should really work.

Apparently not, since the tcp_pbc::flags is an u8_t. And that is where it
occurs. 

tcp_out.c:377:     pcb->flags &= ~(TF_ACK_DELAY | TF_ACK_NOW);

results in:

"..\src\core\tcp_out.c", line 377: warning (dcc:1244): constant out of range
(&=)

But since that may only a problem for us I'm fine when you decide not to use
the patch. We still have the option to either keep our sources changed or
turn the compiler error into a warning and ignore it. But I would still
suggest to use unsigned long for the cmd parameter of the lwip_ioctl()
function.

Florian.