Error in my C programming

[Michael C. Shultz]

On Sunday 20 February 2005 12:41 pm, Richard Sharpe wrote:
> On Sun, 20 Feb 2005, Michael C. Shultz wrote:
> > > >> 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'
> > > >
> > > > I would try putting the variables in the header file on
> > > > separate lines. For example:
> > > >
> > > > unsigned char Length = 0;
> > > > unsigned char Network = 0;
> > > > unsigned char Receiver = 0;
> > > > etc.
> > >
> > > Done that to no avail :(
> > >
> > > Regards,
> > >
> > > Kat.
> >
> > I wonder if Receiver is defined in a include file elsewhere? I
> > checked all the header files on my system and it isn't, perhaps it
> > is on your though? Maybe easier to rename it?
>
> However, the error messages point out that the conflicting definition
> is where Receiver is first used in the function in the .c file. If it
> was another definition, we would be told of the actual .h file where
> the definition came from. I have seen that lots of times :-)
>
> Regards

Your right.  We do not have enough of her code.  I tried this:

#include <stdio.h>
unsigned char Receiver = 0;

int	main(void)
{
	Receiver = 0x00;
	printf( "Receiver -=>%c\n", Receiver  );
	return(0);
}

compiled it with:

gcc -W -Wall -ansi -pedantic -Wbad-function-cast -Wcast-align \
                -Wcast-qual -Wchar-subscripts -Winline \
                -Wmissing-prototypes -Wnested-externs -Wpointer-arith \
              -Wredundant-decls -Wshadow -Wstrict-prototypes zz.c -o zz

and no warnings....

-Mike