[C/Learn] Dynamic Memory/HEAP allocations

Operators -
    - & refrence/address operator
        - returns an address to some memory
    - * derefrence/pointer operator
        - returns the data at some address

int *name -
    - name is variable name (not *name)
    - name is type "Pointer to type int"
    - the * in name makes name point to the address
    of another integer variable

int var = 10; -------> var = 10

int *ptr = &var;
    *ptr = 20; -----> var = 20

int **ptr2 = &ptr;
    **ptr2 = 30; ----> var = 30

To access a refrenced variable use defrefrence operator

void example1() {
    int var = 20;
    int *ptr = &var;

    *ptr += 50;

    printf("Var's Value -> %d\r\n", *ptr);

    return;
}

Changed value of var to 70 (20 + 50)

Memory:
    - VAR[30]-0x03256
    - PTR[0x03256]-0x043265

void example2() {
    int var[] = {5, 7, 10};
    int *ptr = var;

    for(i = 0; i < 3; i++) {
        printf("Value of ptr -> %d\r\n", *ptr);
        ptr++;
    }
}