G'Day Sam,
 
-=> Quoting Sam Benson to All <=-

 SB> void reverse (char line_in[], int index)
 SB> {
 SB> if (line_in[index])   
 SB> {
 SB> printf ("%c", line_in[index]);
 SB> index++;                       
 SB> reverse (line_in, index); 
 SB> }
 SB> printf ("%c", line_in[index]);
 SB> }
I think your problem is that by the time you reach the end of the first 
instance of the function index = 1.
So, here is a revised version..

void reverse (char line_in[], int index)
{
 if (line_in[index++])   /* increment index here */
 {
  printf ("%c", line_in[index]);  
  reverse (line_in, index);       
  }
 printf ("%c", line_in[--index]); /* decrement it here so we're still */
}                                 /* looking at the same char in this 
                                     instance*/                       

FWIW, recursion should not be used with this sort of thing, pointers will
make short work of the same task, while not relying on stack space, not 
to mention that the above function (recursive functions in general) is 
rather hard to follow.                                 
                                             
char* Rev_Str(char* str1,char *str2)
{
 char *ptr1 = str1,*ptr2 = str2;
printf("\n%s",str1); 
 while(*++ptr1);
 while(ptr1 != str1) *ptr2++ = *--ptr1;
 *ptr2 = '\0';
printf("\n%s",str2);
 return str2;
 }   
  

  L8r Frank (fadam{at}ozemail.com.au).
                
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