how do i fix c26001

Question

So, i am creating a console app DOS in visual studio 2019 until this in my code shows up:

#include <string>
#include <iostream>

int main()
{
    const int* firstrun = new int[1];
    std::string cmds = "cmds";
    if (firstrun[1] == '1') {
        std::cout << "loading MYDOS...\n";
        std::cout << "MYDOS has been loaded. type commands or help to start. \n";
        delete[] firstrun;
    }
    std::cin >> cmds;
    if (cmds == "about") {
        std::cout << "MYDOS version TEST-1.0 \n";
    }
    if (cmds == "help") {
        std::cout << "please refer to instructions on mydos.htm. \n";
    }
}


Warning C6001   Using uninitialized memory '*firstrun'. mydos_test1

How do i fix this! i have also referred to the help article. it did not help much.

Answer 1

never mind. it just randomly stopped getting the warning and started working.

Answer 2

this was actually c6001. my mistake.

Answer 3

const int* firstrun = new int[1];
if (firstrun[1] == '1')

You've only allocated 1 item, so firstrun[1] is immediately off the end!

Answer 4

im very new to c++ lol. does this mean i have to change that to a bigger number?