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

[Lai Kang Tin]

My avr-gcc's output:

venus:/opt/avr/project$ make hx.s
/opt/avr/bin/avr-gcc -mmcu=at90s8515 -DAT90S8515  -fno-builtin -Os 
-Wstrict-prototypes -Wall -I./ -I/opt/avr/include -c -S -o hx.s hx.c
hx.c:6: warning: function declaration isn't a prototype
hx.c:7: warning: function declaration isn't a prototype
hx.c:9: warning: function declaration isn't a prototype
hx.c:9: declaration of `FunctionTable' as array of functions
hx.c:9: warning: Only initialized variables can be placed into program memory 
area.
hx.c:9: confused by earlier errors, bailing out
make: *** [hx.s] Error 1

KTL

On Thu, 3 May 2001, Guy Robinson wrote:

> 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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K.T.LAI
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