C++ output - Variable assignment

Question

Code is:
#include <iostream>
using namespace std;
int main() {
int a = 7, b = 1;
if(a = 8 || b == 5)
cout << a * b;
cout << " " << a;
return 0;
}
In this case we have "8", but every and each value is assigned (please note single equal) to a in if, a "becomes" 1. Why?

Answer 1

|| has a higher precedence than =.
a = 8 || b == 5 is the same as a = (8 || b == 5).
(8 || b == 5) evaluates to true, or 1.
Hence a = 8 || b == 5 will result in a being set to 1.
if(a = 8 || b == 5) evaluates to true and the following line will be executed:
cout << a * b; // same as cout 1 * 1;
cout << " " << a; // cout << " " << 1.

Answer 2

Я думаю что "а" присваивается значение "Boolean" равное "true", а "true" - это 1.
I think that "a" is assigned the value of "Boolean" equal to "true", and "true" is 1.