one C question please.. :-)

[mahanare]

HI.
Pl solve this quiz .... and reply back plz!!

if(X)

{

printf("Hello");

}

else

{

printf("World");

}

Question: What should be the value of "X" so that the output is HelloWorld

[Bond]

It will only print one or the other. It's in an if/else statement.

Unless X is:
printf("Hello") && false

or:
!printf("Hello")

[mahanare]

Thanx, Bond

[Bond]

Was this for a class or something?

[mahanare]

no one of my friend asked this problem to me..

here is one more solution

#include <stdio.h>

#define X a==0?a++,main():1

int main()
{
static int a=0;

if(X)
{
printf("Hello");
}
else
{
printf("World");
}
return 0;
}

[Bond]

Interesting. I've never called main from within main before.

[MrViggy]

Actually, I'm not sure that's valid (to recursively call main).

Ahh, yes, in this thread I saw that:

http://www.codeguru.com/forum/showthread.php?s=&threadid=295571

In C, you can recursively call main, however that is illegal in C++.

Viggy