feat: implement bitscanAndReset

1 files changed, 8 insertions, 1 deletions

diff --git a/src/bitboard.c b/src/bitboard.c
index e9a7d53..cffe40f 100644
--- a/src/bitboard.c
+++ b/src/bitboard.c
@@ -25,6 +25,13 @@ inline Bitboard ls1b(Bitboard bb) {
 /* Log base 2 (aka Trailing Zero Count)
  * Only works for SINGLE Bitboards
  * Useful for calculating bit-index of LS1B */
-inline Bitboard bitscan(Bitboard bb) {
+inline int bitscan(Bitboard bb) {
   return pop_count(ls1b(bb) - 1);
 }
+
+/* Bitscan forward with LS1B reset */
+inline int bitscanAndReset(Bitboard* bb) {
+  int idx = bitscan(*bb);
+  *bb &= *bb - 1;
+  return idx;
+}