CODEWITHSUNDEEP
c++arraysfunctionpointers
dcneo
dcneo

Reputation: 3

(c++) saving random value from main to a function array

so this is what i'm suppose to do but its got me kinda confused, this is what i got so far any help would be appreciated:)

Write a function that dynamically allocates an array of integers. The function should accept an integer argument indicating the number of elements to allocate and should return a pointer to the array. Then write a driver in the main function that generates a random number (something not too large), calls the function, and verifies access by saving a value to the first element and displaying the contents of that element.

edited code it runs but i feel like im not using my function at all.

#include <iostream>
#include <iomanip>
#include <ctime>

using namespace std;

int *MyArray(int);


int main()
{

    srand(time(0));
    int random = rand() % 5 + 1;
    const int size = 5;
    int array[size];
    MyArray(size);
   array[0] = random;
    cout << array[0] << endl;
}

int *MyArray(int numOfElements)
{
    int *array;
    array = new int[numOfElements];

    return array;
}

edited code

int main()
{

    srand(time(0));
    int random = rand() % 5 + 1;
    const int size = 5;
    int* array = MyArray(size);
    array[0] = random;
    cout << array[0] << endl;
    delete [] array;
}

Upvotes: 0

Views: 390

Answers (1)

Hemant Gangwar
Hemant Gangwar

Reputation: 2272

I believe you try to do something like this:

#include <iostream>
#include <iomanip>
#include <ctime>

using namespace std;

int *MyArray(int);


int main()
{

    srand(time(0));
    int random = rand() % 5 + 1;
    int *array = MyArray(random); //! store the pointer of dynamically allocated memory and use it.
    array[0] = random;
    cout << array[0] << endl;
    delete [] array; //! To avoid memory leak
}

int *MyArray(int numOfElements)
{
    int *array = new int[numOfElements];
    return array;
}

Note: I'm just guessing this is what you probably looking for.

Upvotes: 2

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