When the increment operator is used as in num1 ++ The expression is in this mode?

Chapter 5: Loops and Files

5.1 The Increment and Decrement Operators

++ is the increment operator.

It adds one to a variable.

val++;      is the same as val = val + 1

++ can be used before [prefix] or after [postfix] a variable:

++val;     val++;

-- is the decrement operator.

It subtracts one from a variable.

val--;      is the same as val = val - 1

-- can be also used before [prefix] or after [postfix] a variable:

--val;     val--;

Increment and Decrement Operators in Program 5-1

// This program demonstrates the ++ and -- operators.
#include
using namespace std;

int main[]
{
   int num = 4;   // num starts out with 4.

      // Display the value in num.
   cout number]
      {
         cout