Indexing using #define

[akshaybhavsar]

Hello,

I have to extract packet information which is stored i array.I have to extract each byte.
I have to set index for each byte like

#define byte1 1
#define byte2 2

I have almost 70 bytes in packet.I cant do it 70 times.

I have to do somethning if possible'

#define byte_x (_x)

Please tell me any other way.

 

[baileychic]

If you want to read the array from beginning to end in sequence then why do you use a variable like

unsigned int i = 0;

to use as array index ?

 

[Easyrider83]

const char value[] = { 1, 2, 3, 4, 5... n }; -> array of char stored in flash
const char * names[] = { "James", "Peter", "Kumar ukurich" ... };

 

[andre_luis]

I have to extract each byte.
I have to set index for each byte

Unless each byte represents a distinc parameter, there is no other tricky way to do that; otherwise, if the whole array is only one datum, you just need to know the lenght of the array. Its address you can get straight with C statements, as for example the '&', and you can handle the index by incrementing an offset added to it.