c pointer to array of structs

Question

I know this question has been asked a lot, but I\'m still unclear how to access the structs.

I want to make a global pointer to an array of structs:

Answer 1

The syntax you are looking for is somewhat cumbersome, but it looks like this:

// Declare test_array_ptr as pointer to array of test_t
test_t (*test_array_ptr)[];

You can then use it like so:

test_array_ptr = &array_t1;
(*test_array_ptr)[0] = new_struct;

To make the syntax easier to understand, you can use a typedef:

// Declare test_array as typedef of "array of test_t"
typedef test_t test_array[];
...
// Declare test_array_ptr as pointer to test_array
test_array *test_array_ptr = &array_t1;
(*test_array_ptr)[0] = new_struct;

The cdecl utility is useful for deciphering complex C declarations, especially when arrays and function pointers get involved.