Const array in structure

[Gerrit]

How do I build the next structure

const char test_A[1024] = {0,0,0.......};
const char test_AA[95] = {0,0,0.......};

const char test_B[1024] = {0,0,0.......};
const char test_BB[95] = {0,0,0.......};

struct

struct FONT_DEF
{
char store_width;
char glyph_height;
const char glyph_table[];
char fixed_width;
const char width_table[];
char glyph_beg;
char glyph_end;
char glyph_def;
};

const struct FONT_DEF fonts[FONT_COUNT] = {
#ifdef EN_FIVE_DOT
{1, 7, test, 0, test_A,' ','~','.'},
#endif

#ifdef EN_SIX_DOT
{2, 8, test_B, 0, test_BB,' ','~','.'},
#endif
}

regards,

gerrit

[dyeatman]

First off, what processor are you using?

There are limitations on array sizes in 16F series chips.

[Gerrit]

I'm using a 18F6622 micro.

Sorry for not mentioning.

I want to access som const char arrays indirect via a structure.

I need to memcpy or memmove data from some location in the const char array to a normal char array

Or are ther better ways to do this ?

Gerrit

[Mark]

Data and program space are different in the pics. You would have to use a pointer to a const array in your struct. However, CCS doesn't support pointers to const so that will not work either. You could just use an int value to specify which const array the struct is using and then use a switch statement on the int value to access the const array.

[Gerrit]

Hello Mark,

I thought it would come to this. Only this solution makes me less flexible
in adding members to the structure.

I will think it over and try to make somethink that fits my needs

Thanks to you for replying.

Gerrit

P.S. will version 4 include * to const !!

[Ttelmah]

However, it is worth remembering that if the const array, is a simple integer array, you can access this with normal array accesses. This ought (untried...), to allow transfers if needed with a union. So as a example: