Re: [Bug-tar] [PATCH] xheader: avoid pointer-arith warning

[Paul Eggert]

Sergey Poznyakoff wrote:
-  cp = obstack_next_free (xhdr->stk) - xhdr->string_length - p - 1;
+  cp = (char*) obstack_next_free (xhdr->stk) - xhdr->string_length - p - 1;

The usual GNU style is to have a space before the "*".  Better yet, avoid the 
cast entirely:

   cp = obstack_next_free (xhdr->stk);
   cp -= xhdr->string_length + p + 1;