RE: [avr-gcc-list] Table of function pointers

[Jon Bertrand]

You have some stuff I'm not familar with.

Here is how I do arrays of pointers to functions:

/* prototypes for the actual functions */
void Cmd1(TByte bCmd);
void Cmd2(TByte bCmd);
void Cmd3(TByte bCmd);

/* the actual functions all must match the type TFunctionPtr */
typedef void (*TFunctionPtr)(TByte bCmd);

/* the array */
const TFunctionPtr CommandArray[] = 
{
  Cmd1, 
  Cmd2,
  Cmd3
};

/* how to call a function */
main()
{
  CommandArray[bIndex](bParameter);
}

Jon B.

> -----Original Message-----
> From: Guy Robinson [mailto:address@hidden
> Sent: Wednesday, May 02, 2001 3:43 PM
> To: address@hidden
> Subject: [avr-gcc-list] Table of function pointers
> 
> 
> Hi,
> Can anyone explain what this error means? See source below. I 
> can't see what
> I'm doing wrong. Thanks in advance for your help.
> 
> Guy
> 
> hx_2313.c:37: declaration of `FunctionTable' as array of functions
> hx_2313.c:37: Tree check: expected class 't', have 'x' (error_mark)
> confused by earlier errors, bailing out
> D:\AVRGCC\BIN\MAKE.EXE: *** [hx_2313.o] Error 1
> 
> 
> #include <io.h>
> #include <progmem.h>
> 
> #define pint int __attribute__ ((progmem))
> 
> void function0();
> void function1();
> 
> pint *FunctionTable[2]() = {function0,function1};
> 
> char a,b,index;
> 
> void function0(){
>        a =b;
>   }
> void function1(){
>      b =a;
>  }
> 
> void main(void){
> 
> PRG_RDB(FunctionTable[index]());        // call function from 
> table at index
> index++;
>  }
> 
> 
> 
> 
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