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Pointer Operator

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hello188

Joined: 02 Jun 2010
Posts: 74

Pointer Operator
Posted: Tue Apr 30, 2013 4:58 pm

Hi I am trying to convert a firmware written for 8051 with keil C compiler to PIC source code for CCS compiler here, it seems to use pointer operation A->B = 0x0000 what does it mean? above expression seems to compile without problem However, D->E \|=D doesn't pass the compiler test How do you break it up into two so that it compiles? Thank you

PCM programmer

Joined: 06 Sep 2003
Posts: 21708

Posted: Tue Apr 30, 2013 5:25 pm

Reply with quote

Quote:

D->E |=D
doesn't pass the compiler test

It would be better if you posted the actual line of code and all the data
declarations for it. Or better, post a test program and your compiler
version. Example:

Code:

#include <18F4520.h>
#fuses INTRC_IO, NOWDT, PUT
#use delay(clock=4M)
#use rs232(baud=9600, UART1, ERRORS)

typedef struct
{
int8 a;
int8 b;
int8 c;
}abc_t;

abc_t my_struct = {0,1,2};

void func1(abc_t *s_ptr)
{

s_ptr->a |= 0x55;
}

//============================
void main()
{
printf("%x ", my_struct.a);

func1(&my_struct);

printf("%x ", my_struct.a);

while(1);
}

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