I think their is a bug in SoloLearn c++

Question

for some reason this code gives an error even though it is correct

#include <iostream>
using namespace std;

int main() {
int a = 5;
return 0;
}
is it SoloLearn or me

Answer 1

Endro ,
It's not a bug, it's a feature.
It's not error ,it's a warning 😄

Sololearn compiler is warning you because you have declared a variable but not using it.

You can suppress such warnings by using maybe_unused attribute or just delete that declaration if you are not going to use it.

[[maybe_unused]] int a=5;

It'll not show you warning for unused `a`.

https://en.cppreference.com/w/cpp/language/attributes/maybe_unused

Happy learning ^^

Answer 2

oh, thanks