[Sdcc-user] Compiler problem: can't determine size of array of struct inside of a struc

[Kotrba L. <LK...@cs...>]

Hello,

From the snapshot 2.4.1 (20040310) of sdcc I found a problem with determination of size of an array inside a struct. In the examples below there are 2 definitions of structure containing array named case_table1 and case_table2. The difference between them is only in the specification of size of the array char_pf_struct rows[]; case_table1 does not specify the size and does not work correctly- it takes only one element of the array. On other hand if we specify the size of the array as in case_table2, all works fine.

Can anybody help with this problem?


Ladislav Kotrba



//>sdcc  -v
//SDCC : mcs51/gbz80/z80/avr/ds390/pic16/pic14/TININative/xa51/ds400/hc08 2.4.1 (Mar 10 2004) (MINGW32)

typedef struct {
       unsigned char pattern;
 void (*pf) (void);
} char_pf_struct ;

typedef struct {
        unsigned char num_row;   
        char_pf_struct rows[];    
} case_pattern_struct ;    

extern void    foo1(void);
extern void    foo2(void);

//Definition below generated warning: excess elements in array initializer after `case_table1'
// and struct includes only elements 2, 0x40, foo1
code case_pattern_struct case_table1 = {
 2, {
  {0x40, /*01000000B*/  foo1},       
  {0x50, /*01010000B*/  foo2}
 }
};     
	
//This definition is OK
//struct includes elements 2, 0x40, *foo1, 0x50, *foo2
code struct {
      unsigned char num_row;          
      char_pf_struct rows[2];} 
        case_table2 = { 
 2, {
  {0x40, /*01000000B*/  foo1},       
  {0x50, /*01010000B*/  foo2}
 }
};     

//-------------------------------------------------------------------;
// Proc. def.                                                        ;
//-------------------------------------------------------------------;

void    foo1(void) {}
void    foo2(void) {}