Error in my C programming

Kathy Quinlan kat-free at kaqelectronics.dyndns.org
Sun Feb 20 11:48:27 PST 2005


Richard Sharpe wrote:

> On Mon, 21 Feb 2005, Kathy Quinlan wrote:
> 
> 
>>Peter Jeremy wrote:
>>
>>
>>>On Mon, 2005-Feb-21 00:22:56 +0800, Kathy Quinlan wrote:
>>>
>>>
>>>>These are some of the errors I get in pairs for each of the above variables:
>>>>
>>>>Wtrend_Drivers.c:15: conflicting types for `Receiver'
>>>>Wtrend_Drivers.h:9: previous declaration of `Receiver'
>>>
>>>
>>>Without knowing exactly what is on those lines, it's difficult to offer
>>>any concrete suggestions.
>>>
>>>Two possible ways forward:
>>>1) Change the declaration at Wtrend_Drivers.h:9 to be 'extern'
>>>2) Pre-process the source and have a close look at the definitions and
>>>   declarations for Receiver.  You may have a stray #define that is
>>>   confusing the type or a missing semicolon.
>>>
>>>Peter
>>>
>>
>>Here is a section of my code:
>>
>>*** Wtrend_Drivers.c ***
>>
>>(12)void Reset_Network (unsigned char Network)
>>(13)   {
>>(14)    Length = 0x00;
>>(15)    Receiver = 0x00;
>>(16)    Node = 0xFF;
>>(17)    Command = Reset;
>>(18)    Make_Packet_Send(Head , Length, Network, Receiver, Node,
>>Command, p_Data);
>>(19)   }
>>
>>*** Wtrend_Drivers.h ***
>>
>>unsigned char Length , Network , Receiver , Node , Command = 0x00;
>>
>>The above is line 9 of the Wtrend_Drivers.h
>>The numbers in () I have added to show the line numbers in Wtrend_Drivers.c
>>
>>These are some of the errors I get in pairs for each of the above variables:
>>
>>Wtrend_Drivers.c:15: conflicting types for `Receiver'
>>Wtrend_Drivers.h:9: previous declaration of `Receiver'
> 
> 
> Ummm, move the definition of all those variables to before their first
> use and see what that does. Also, check that you do not have an earlier
> definition that does not include the extern keyword.

Checked all that, in Wtren_Drivers.h (which is listed before the c file 
they are used in) I have:

extern unsigned char wtReceiver =0;

is that what you mean ?

Regards,

Kat.


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