Merge pull request #20 from jnz86/fix_rollover_bug

Fixed incorrect rollover after copy

lwrb/src/lwrb/lwrb_ex.c

@@ -149,18 +149,16 @@ lwrb_copy(lwrb_t* dest, lwrb_t* src) {
     /* For the lesser amount in source or free in destination, copy byte by byte */
     for (i = 0; i < len_to_copy; i++) {
 
+        dest->buff[dest_w++] = src->buff[src_r++];
+
         /* Handle roll-over / wrap for both source and destination indexes */
         if (dest_w >= dest->size) {
             dest_w = 0;
-        }
-
-        if (src_r >= src->size) {
+        if (src_r >= src->size)
             src_r = 0;
-        }
-
-        dest->buff[dest_w++] = src->buff[src_r++];
     }
 
+
     atomic_store_explicit(&dest->w, dest_w, memory_order_release);
     atomic_store_explicit(&src->r, src_r, memory_order_release);