/* dynamically-allocated 1-D arrays */
#include <stdio.h>
#include <stdlib.h>
int
main (void)
{
//declare the pointers to the two arrays
double* array1;
double* array2;
int i, size;
//ask user for size of arrays - same size for both
printf ("How large do you want your array? ");
scanf ("%d", &size);
//allocate the array1 in the heap with calloc
array1 = (double *) calloc (size, sizeof(double));
//allocate the array2 in the heap with malloc
array2 = (double *) malloc (size * sizeof(double));
//printing the arrays for verification
//calloc initializes all cells to 0 bit malloc doesn't.
for (i = 0; i < size; ++i)
printf ("%6.2lf", array1[i]);
printf ("\n");
for (i = 0; i < size; ++i) {
array2[i] = i*3;
printf ("%6.2lf", array2[i]);
}
//freeing the memory allocations
free (array1);
free (array2);
return (0);
}
