Re: [paho-dev] Visual Studio

[Ian Craggs <icraggs@xxxxxxxxxxxxxxxxxxxxxxx>]

Thanks Mark.  It has come up before but I need to fix it.  My preferred 
way is:

#define MQTTClient_willOptions_initializer { {'M', 'Q', 'T', 'W'}, 0, NULL, NULL, 0, 0 }

The compilation methods I usually use don't complain.  I'll fix it.

Ian

On 24/02/13 13:34, Cullen, Mark wrote:
> Hello
>
> I'm new to the list so sorry if this has come up before.
>
> I am trying to use the Paho C client in Windows using Visual Studio 2005
>
> I came across a problem while trying to compile the async publish example.
>
> These to lines
>
> MQTTClient_connectOptions conn_opts = MQTTClient_connectOptions_initializer;
> MQTTClient_message pubmsg = MQTTClient_message_initializer;
>
> cause
>
> error C2117: 'MQTTClient_connectOptions::struct_id' : array bounds overflow
>
> The problem is the initializers contain strings like "MQTM" these are actually 5 characters long (0 terminator), but the structure definitions contain char struct_id[4]; which is only 4.
>
> For Visual Studio changing
>
> #define MQTTClient_willOptions_initializer { "MQTW", 0, NULL, NULL, 0, 0 }
>   
> to
>
> #define MQTTClient_willOptions_initializer { 'M', 'Q', 'T', 'W', 0, NULL, NULL, 0, 0 }
>
> But I don't know if this will work with other compilers like GCC etc
>
>
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