bb migration: add util, update fen/fen-test + partial pos + piece

src/util.c

@@ -0,0 +1,44 @@
+/* util.c - various util functions.
+ *
+ * Copyright (C) 2024 Bruno Raoult ("br")
+ * Licensed under the GNU General Public License v3.0 or later.
+ * Some rights reserved. See COPYING.
+ *
+ * You should have received a copy of the GNU General Public License along with this
+ * program. If not, see <https://www.gnu.org/licenses/gpl-3.0-standalone.html>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later <https://spdx.org/licenses/GPL-3.0-or-later.html>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "util.h"
+#include "bitboard.h"
+
+/**
+ * bitboard_print_simple - print simple bitboard representation
+ * @bitboard: the bitboard
+ * @title: a string or NULL
+ */
+void raw_bitboard_print(const bitboard bitboard, const char *title)
+{
+    if (title)
+        printf("%s\n", title);
+    for (rank r = RANK_8; r >= RANK_1; --r) {
+        printf("%d ", r);
+        for (file f = FILE_A; f <= FILE_H; ++f)
+            printf(" %c", bitboard & (BB(f, r)) ? 'X': '.');
+        printf("  A B C D E F G H\n");
+    }
+    printf(" \n");
+    return;
+}
+
+/*int main()
+{
+    char *foo = safe_malloc(1000);
+    exit(0);
+}
+*/