#Test_Series

Question

Consider the below given C code:

Void main()
{
int x=5,y=2;
int *p;
p=&x;
y=*p;
x=*y;
printf("y is %d x is %d\n",y,x);
}

Choose the correct option:

A) The following program has 1 lexical error, 1 syntax error.

B) The following program has 1 lexical error only.

C) The following program has 1 lexical error, 1 semantic error.

D) No error

Comments

lexical errror:- which have unterminated comments, nested comments , invalid constants, invalid identifiers.

example:-a) int @b; $\rightarrow$ which is a lexical error.

      b) printf(" abc); $\rightarrow$ which is a lexical error.

Syntax error:-  error in the syntax of a sequence of characters or tokens that is intended to be written in a particular programming language.

example:-  int main()

                 {

                      int i,n;

                      fro(i=0;i<n;i++)

                     {

                        }

                 }

Here due to fro , it will show syntax error.

Semantic errror:- These are valid code the compiler understands, but they do not what you, the programmer, intended. These may be using the wrong variable, the wrong operation, or operations in the wrong order. There is no way for the compiler to detect them.

example:  (a) int x,y,z;

                      x+y = z;

               (b) int i;

                     i++;

          This will give semantic error.

As a concern of your questions, Void $\rightarrow$ shows syntax error and

x=*y; $\rightarrow$ shows semantic error because of wrong operations.

But there is no option that are matching with my answer thats why i was doubting with my answers.

---

I think there is one semantic and one syntactic error only and no lexical error as "Void" matches the pattern of an identifier but causes a syntax error.

---

answer given is c

but i m still confused!