Why does this basic if-else statement refuse to post anything other than one? The integer is a=2.

Question

#include <iostream>
using namespace std;

int main() {

int a=2;

if (a=1)

{

cout<<1<<endl;

}

else

{

cout<<2<<endl;

}

return 0;
}

Answer 1

Because assignment inside an if will return true until and unless 0 is not assigned. Try assigning 0 to 'a' inside if and it should execute the else part.

Answer 2

You need to use == operator to compare variable values....
You have declared a=2 then in if condition you should specify
if(a==1)

Answer 3

Output says: 1

Answer 4

You are assigning a=1 inside the if and then printing it. Why do you expect your else to be executed?

Answer 5

Shouldn't the else statement be executed if the if statement is false?

Answer 6

Thx. This worked. Now one other question. If you do not mind telling me the truth for the 0. Is this considerable to think there must be 0 in the first, or only "if" statement?

Answer 7

It will be something like if(0) which returns false and the else part is executed.

Sorry I meant, until and unless 0 is NOT assigned. I have changed it.