This may be a long shot, but anyway...
Say I have lots of arrays named list1[], list2[], list3[], etc.
I want a while() loop where I do something like this:
while(1)
{
afunction(listX);
}
....where X is incremented each time.
In case you wonder why I want to do this, I'm saving C arrays from
Wireshark to feed into C code for testing and the arrays it generates
have incrementing numbers. Typing in all these array names manually is
tiring.
You could use a two-dimensional array, like so:
1 | #include <stdio.h> |
2 | |
3 | #define LIST_ELEM_MAX 4
|
4 | #define NO_OF_LIST 3
|
5 | |
6 | int main() |
7 | {
|
8 | unsigned int i, j; |
9 | unsigned int lists[NO_OF_LIST][LIST_ELEM_MAX] = { { 1, 2, 3, 4 }, |
10 | { 2, 4, 6, 8 }, |
11 | { 5, 10, 15, 20 } }; |
12 | |
13 | for (i=0; i < NO_OF_LIST; i++) |
14 | {
|
15 | for (j=0; j < LIST_ELEM_MAX; j++) |
16 | {
|
17 | printf("Element %d of list %d: %d\n", j, i, lists[i][j]); |
18 | }
|
19 | printf("\n"); |
20 | }
|
21 | |
22 | return 0; |
23 | }
|
Thanks for the reply, but that still means I have to change dozens or maybe hundreds of arrays that I simply cut and paste out of Wireshark. If I could put some syntax around the entire block of arrays without having to change the syntax of each one, that would be better.
You can do it like so:
1 | extern type_t list1[]; |
2 | extern type_t list2[]; |
3 | extern type_t list3[]; |
4 | |
5 | type_t *lists[] = |
6 | {
|
7 | list1, |
8 | list2, |
9 | list3
|
10 | };
|
11 | |
12 | extern void do_list (type_t*); |
13 | |
14 | void do_lists (void) |
15 | {
|
16 | size_t l; |
17 | |
18 | for (l = 0; l < sizeof (lists) / sizeof (*lists); l++) |
19 | do_list (lists[l]); |
20 | }
|
I ended up writing a simple C program to generate a very long list of function calls with incrementing array names being passed to the function. It's messy, but it's the easiest thing I've come up with.
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