Re: [paho-dev] MQTT-SN and MQTT embedded C client updates

[Ian Craggs <icraggs@xxxxxxxxxxxxxxxxxxxxxxx>]

Hi Roger,

I used unsigned char* rather than void* for the payload/buffers as I 
thought of them as byte arrays or similar, and to aid pointer 
arithmetic.  I'll consider that one.

Ian

On 08/02/2014 08:05 PM, Roger Light wrote:
> Hi Ian,
>
> > Packet ids have been changed to "unsigned short", and data buffers to
> > "unsigned char".  Now the data types are also consistent between the MQTT
> > and MQTT-SN libraries, which was another motivation.
> >
> > I'm not expecting any further data type changes unless a good reason
> > appears.  I started using size_t for buffer sizes, but have stuck with ints
> > to reduce dependencies on any headers - just in case some esoteric/old
> > embedded compiler didn't like size_t.
> I'm inclined to agree with Frank - do it "properly" (use size_t) and
> then fix the odd case where size_t isn't defined if it crops up.
>
> I'm also of the opinion that "void *" is a better data type for the
> data buffers - less hassle for the end developer - but that's probably
> less important.
>
> Cheers,
>
> Roger
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--
Ian Craggs
icraggs@xxxxxxxxxx                 IBM United Kingdom
Committer on Paho, Mosquitto