CODEWITHSUNDEEP
c
Bazooka
Bazooka

Reputation: 1458

Obfuscated Code in C

Please explain how the following snippet of code in C is a valid one

int main(c, v) char *v; int c;{
 //program body
}

I stumbled across some examples from the International Obfuscated C code contest and i'm just curious.

Upvotes: 5

Views: 654

Answers (4)

NPE
NPE

Reputation: 500167

It's K&R-style function declaration. See Function declaration: K&R vs ANSI

However, I don't believe it has a valid signature for main(), since v isn't of the right type. See What are the valid signatures for C's main() function?

Upvotes: 9

Matteo Italia
Matteo Italia

Reputation: 126777

That's just the K&R-style function definition, that, although marked "obsolete", is still allowed by the standard. What is not fine in that code is that the first parameter should be char **v (or char *v[]) to be standard.

Upvotes: 0

unwind
unwind

Reputation: 399703

This is "K&R C", in which function arguments are declared between the end of the argument list and the start of the function's body.

Upvotes: 0

Roel
Roel

Reputation: 19612

It's the pre-ANSI style of function declaration, if you're referring to why the char*v; int; is outside of the parentheses.

Upvotes: 2

Related Questions