structures forward declarations

src/board.h

@@ -16,10 +16,12 @@
 
 #include <stdint.h>
 #include "chessdefs.h"
+#include "piece.h"
+#include "position.h"
 
-typedef struct {
+typedef struct board_s {
     piece_t piece;
-    //piece_t *s_piece;
+    piece_list_t *s_piece;
 } board_t;                                        /* 0x88 board */
 #define BOARDSIZE    (8*8*2)
 
@@ -51,4 +53,4 @@ typedef struct {
 #define FILE2C(f)    ((f) + 'a')
 #define RANK2C(r)    ((r) + '1')
 
-#endif
+#endif  /* BOARD_H */

src/chessdefs.h

@@ -73,4 +73,10 @@ typedef unsigned char castle_t;
  */
 typedef int64_t         eval_t;
 
+/* forward typedefs
+ */
+typedef struct piece_list_s piece_list_t;
+typedef struct board_s board_t;
+typedef struct pos_s pos_t;
+
 #endif

src/fen.c

@@ -84,7 +84,7 @@ pos_t *fen2pos(pos_t *pos, char *fen)
 #               endif
                 piece |= color;
                 board[SQ88(file, rank)].piece = piece;
-                piece_add(pos, piece, SQUARE(file, rank));
+                board[SQ88(file, rank)].s_piece = piece_add(pos, piece, SQUARE(file, rank));
                 file++;
                 break;
             case '/':

src/piece.h

@@ -14,12 +14,13 @@
 #ifndef PIECE_H
 #define PIECE_H
 
+#include <ctype.h>
+
 #include "chessdefs.h"
 #include "board.h"
 #include "list.h"
 #include "position.h"
 #include "pool.h"
-#include "ctype.h"
 
 #define PIECE_DEFAULT_VALUE 0
 
@@ -31,7 +32,7 @@
 #define QUEEN_VALUE   900
 #define KING_VALUE    20000
 
-typedef struct {
+typedef struct piece_list_s {
     piece_t piece;
     square_t square;
     short castle;

src/position.h

@@ -19,7 +19,7 @@
 #include "board.h"
 #include "list.h"
 
-typedef struct position {
+typedef struct pos_s {
     piece_t turn;                                 /* we use only color bit */
     castle_t castle;
     square_t en_passant;