The **goto statement** alters the normal sequence of execution in a C/C++ program; it is similar to an​ *unconditional jump*.

# Syntax 

The label is an *identifier*. When the `goto` statement is encountered, control of the program jumps to `label:`, and the code starts executing after it.

# Code

The following example uses the `goto` statement in a function that checks whether or not​ a number is a multiple of $3$:

#include <iostream>

using namespace std;

// function to check even or not 
void multipleOfThree(int num) 
{ 
  if (num % 3 == 0)
    goto multiple;
  else
    goto notMultiple;

  multiple: 
    cout << num << " is a multiple of 3." << endl; 
    return; // return if even 
  notMultiple: 
    cout << num << " is not a multiple of 3." << endl; 
} 
  
// Driver code
int main() 
{ 
  int num1 = 18; 
  multipleOfThree(num1);
  int num2 = 19;
  multipleOfThree(num2); 
} 

>​While the `goto` statement appears to be very useful, its use is discouraged because, more often than not, it makes the program logic complex, difficult to follow, and creates complications when modifying the code. Therefore, one must be very cautious when using the `goto` statement.

What is the goto statement in C/C++?

Goto alters execution flow in C/C++, but its use is discouraged due to complexity and maintenance challenges.