In the starter code below, you will find the stub of a function
called ReadNumberSequence.
Follow the Todo instructions to complete the function and the program
that calls it.
This
lab is a simple example of dynamic allocation of a single dimension
array of integers. The test cases are designed to make sure that
nothing in the program is hard-coded but is instead read from the
stdin (cin).
Directions
Using
the starter code below,
follow the ToDo
directions. This
lab has you use dynamic allocation to create and populate an array.
/*
ToDo: Build a function that reads a sequence of integers from input
to fill a dynamically
allocated array.
Store the items and return a pointer to the array.
For example, if the length is 3, and the numbers are 123 345 99 then
the array returned will
be of size 3, and stores values 123, 345 and 99.
@param size: upon return, stores the size of the array @return the
pointer pointing to the array
*/
int
* ReadNumberSequence (int & size)
{
int * array = NULL; // create an array.
// the ptr to the array will be returned
//initialize the pointer to NULL
do {
cout <<"Enter the length of the number sequence:";
cin >> size;
}
while (size <= 0);
// Todo: Write
a statement to allocate memory for the array.
// Note: we know the
value of size only at run time, so we need to
DYNAMICALLY
//
Todo: write a loop to read size # of int from input, and store
in the array
return
array;
}
// ToDo: Complete the
program
int
main()
{
//
Todo: declare necessary variables
// Todo: call
the ReadNumberSequence function to read a sequence of
numbers
// Todo: write
a loop to display the elements in the array returned
// Todo: free
the array returned by ReadNumberSequence
return
0;
}
Sample
Output
Enter the length of
the number sequence: 3
Enter
3 number of elements to store in the array: 123
345 99
123
345
99
