Thread: pointers and arrays

Hi,
I need to understand the following code.

Code:

typedef struct x
{
  int a;
  char c;
  fload f;
}stx;

struct upper
{
  int num;
  stx *pstx;
}

now,here *pstx is a pointer to a structure stx.
1.if we write stx *pstx[10];here pstx is an array of pointers to the structure stx.
   to allocate the memory pstx[0] = new stx;

2.if pstx = new stx[10].

then
Coulde somebody tell me the difference between 1 and 2.

Best Regards
Murali026

1.if we write stx *pstx[10];here pstx is an array of pointers to the structure stx.
to allocate the memory pstx[0] = new stx;

True, but this will only allocate memory dynamically to the first element in the array.

2.if pstx = new stx[10].

Code:

stx *pstx = new stx[10];

will allocate memory dynamically for an array of 10 structs and return that memory to the pointer pstx.