What will be the output of the code?

Question

int x = 5;
cout << ++x + x +x-x;

// I know the answer, but I don’t understand why the answer is this.

Answer 1

++x means increment x by 1 then use its value. So, x = 6
6 + 6 + 6 - 6 = 12

Answer 2

Tahiti🍷
Short description; it is a program or collection of tools that takes your written readable code and converts it into runnable machine code, usually in the form of an executable file (exe on Windows).

https://en.m.wikipedia.org/wiki/Compiler

https://www.stroustrup.com/compilers.html

Answer 3

ChaoticDawg ,
Thank you. I thought that only the first integer/variable in the equation would be incremented. Now it makes sense.

Answer 4

Tahiti🍷
It will increment the value of the variable itself in memory.
Note: The the precedence of the increment/decrement operator(s) to the addition/subtraction operator(s) may vary from one C++ compiler to next so the answer may also vary.

Answer 5

Ok, ChaoticDawg . Now, could you explain what is a compiler? Thanks.