Growing Array in C [closed]

Question

Can any one Explain me plz the concept of Growing Array Of Structs. i mean dynamic Arrays. thanks for your Time.

Answer 1

Start with a small array of some size, then whenever you need to increase the size, use realloc to do so; it is common to double the size of the array whenever you resize it.

For example:

int length = 5;
my_struct *array = NULL;

/* Initialization */
array = (my_struct *)malloc(length * sizeof(my_struct));

/* Use array[0] .. array[length - 1] */

/* When you reach the limit, resize the array */
length *= 2;
array = (my_struct *)realloc(array, length * sizeof(my_struct));

Answer 2

Do you mean dynamic size of an array? In that case you must allocate memory fitting for you needs. See realloc