CODEWITHSUNDEEP
c++arraysdynamic-arrays
ahmach98
ahmach98

Reputation: 11

Why can I create a static array dynamically in c++?

I was just going through some simple C++ concepts. I like to think that I am aware of the difference between dynamic and static arrays. But when I run the following code:

`

#include <iostream>
using namespace std;
int main()
{
    int size;
    cout<<"enter size: ";
    cin>>size;
    int arr[size];
    cout<<"enter array values: ";
    for(int i=0;i<size;i++)
        cin>>arr[i];
    for(int i=0;i<size;i++)
        cout<<arr[i]<<" ";
    return 0;
    }

`

It does not give me an error. It shouldn't let me create a static array with the size input from the user right?

Upvotes: 1

Views: 144

Answers (1)

bitmask
bitmask

Reputation: 34634

You cannot. This is not valid C++.

It compiles because the compiler you use offers extensions beyond by the C++ standard. Your compiler would have warned you about it if you had enabled compiler warnings:

-Wall -Wextra -pedantic

Upvotes: 5

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