lvalue required as increment operand

Question

gcc 4.4.4

What am I doing wrong?

char x[10];
char y[] = \"Hello\";
while(y != NULL)
    *x++ = *y++;

Many thanks for any advice.

Answer 1

At most times, array just like a pointer.

Just remember you can't modify array!

And y++ is y = y + 1.

char y[] = "Hello";

So you do modify array when you y++!!

It will produce error: lvalue required as increment operand.