dynamic allocation of 2d array

I need to dynamicly allocate a 2 dimensional array in a function.
The parameters that are passed to the function are the columns and rows of the matrix.(Do i use malloc, calloc, new...)?

use malloc
calloc sets the memory to NULL and new/delete is used in C++

example:

Code:

---

#define X 10
#define Y 5

/* allocate */
int i;
*temp = malloc(sizeof(int*) * X);
for(i=0;i<X;i++){
  temp[i] = malloc(sizeof(int) * Y);
}

/* delete */
for(i=0;i<X;i++){
  free(temp[i]);
}
free(temp);

---

Do I have to define constants?
Can I use the parameters that are passed to the function to declare the size?

Just search the board - dynamic 2D allocation is a common question - there are plenty of examples to be found.

No they do not have to be constants.