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 issue you have is that you are taking (*test_array_pointer) which is the first element of the array. If you want to assign to a specific element of the array, you would do the following...

function foo()
{
    test_array_ptr = array_t1;

    test_t new_struct = {0,0};
    memcpy( &test_array_ptr[0], &new_struct, sizeof( struct test_t ) );
}

if you want to always assign to the first element of the array you could do this...

function foo()
{
    test_array_ptr = array_t1;

    test_t new_struct = {0,0};
    memcpy( test_array_ptr, &new_struct, sizeof( struct test_t ) );
}

and has been pointed out to me by others, and something I honestly had entirely forgotten for having not used it in the better part of forever, you can do direct assignment of simple structures in C...

function foo()
{
    test_array_ptr = array_t1;

    test_t new_struct = {0,0};
    test_array_ptr[0] = new_struct;
}