Const - C Programming Questions and Answers

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What will be the output of the program?

 #include 

 int main()
 {   
      const int i=0;     
      printf("%d\n", i++);
      return 0; 
 }

No output

Error: ++needs a value

Answer : Option D

Explanation :

This program will show an error "Cannot modify a const object".

Step 1: const int i=0; The constant variable 'i' is declared as an integer and initialized with value of '0'(zero).

Step 2: printf("%d\n", i++); Here the variable 'i' is increemented by 1(one). This will create an error "Cannot modify a const object".