letting user input number of elements in array

can a user input the number of elements in an array? this won't work:

Code:

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int liEls;
cout << "Elements in array liaArray[]="; cin >> liEls;
const int cliEls=liEls;
int liaArray[cliEls];

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^^note cliEls versus liEls.

i'm trying to learn c++, thanks for your help!

Sure:

Code:

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int nArraySize = 0;

cout << "How many items in the array? ";
cin >> nArraySize;

int *pnArray = (int *)calloc(nArraySize, sizeof(int));

// Use pnArray as a normal array...

free(pnArray);

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Quote:

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(int *)???
calloc() ???
free() ??

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Did you see the sign on the door when you came in? This is a C++ forum.
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Quote:

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^^note cliEls versus liEls.

i'm trying to learn c++

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First lesson: use simple, clear variable names. It appears that picking non-confusing variable names is not your strong suit at this point, so stick with single letters of the alphabet until you get the hang of it.

C++ allows you to dynamically create arrays at runtime. Here is how it is done:

Code:

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#include <iostream>
#include <string>
using namespace std;

int main()
{
        int s;
        cout<<"Enter the array size: ";
        cin>>s;

        string* ptr = new string[s];
       
        for(int i = 0; i < s; i++)
        {
                cout<<"Enter some text: ";
                cin>>ptr[i];
        }

        for(int j = 0; j< s; j++)
        {
                cout<<ptr[j]<<endl;
        }

        delete [] ptr;
               
  return 0;
}

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-_- I'm just stuck in the past. :P

calloc / free is C, this is C++

So

Code:

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int nArraySize = 0;

cout << "How many items in the array? ";
cin >> nArraySize;

int *pnArray = new int[nArraySize];

// Use pnArray as a normal array...

delete [] pnArray;

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Did I mention I dislike hungarian notations?

The "best" way to allocate an array based on user input is to use a vector:

Code:

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int liEls;
cout << "Elements in array liaArray[]="; cin >> liEls;
std::vector<int> liaArray(liEls);

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There is no need to cleanup (delete or free) the memory later, it will be cleaned up automatically like your original static array is.