This is real code I found in a file today. This is the *whole* body of the code. AGH.

g_char.h

void g_char(char *a, int alen, char *b) 
{
	char *x=a+alen-1,
	 *y=b+alen-1;
	while (x >= a  &&  *x == ' ')
	 {
	  x--;
	  y--;
	 }
	*(y+1) = '\0';
	while (x >= a)
	 *y-- = *x--;
} // end g_char