To determine the output of the given code, let's analyze the code step by step:
- The function
int v()
is defined, which returns an integer value.
- Inside the function
v()
, a variable m
is declared and initialized to 0.
- The statement
return m++;
is used to return the value of m
and then increment it by 1. However, the postfix increment operator (++
) returns the original value of m
before incrementing it.
- The
main()
function is defined.
- The output statement
cout << v();
is used to call the v()
function and print its return value.
Now, let's go through each option to determine the correct output:
Option A) 1 - This option is incorrect because the postfix increment operator (m++
) returns the original value of m
before incrementing it. Therefore, the value returned by v()
will be 0.
Option B) 0 - This option is correct because the return statement return m++;
returns the initial value of m
, which is 0.
Option C) Code cannot compile - This option is incorrect because the code provided is syntactically correct and will compile without any errors.
Option D) None of the Above - This option is incorrect because the correct answer is Option B) 0.
Therefore, the correct answer is Option B) 0.