diff options
Diffstat (limited to 'src/bitboard.rs')
| -rw-r--r-- | src/bitboard.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/bitboard.rs b/src/bitboard.rs index 6481863..646006c 100644 --- a/src/bitboard.rs +++ b/src/bitboard.rs @@ -24,6 +24,9 @@ pub fn pop_count(bb: Bitboard) -> u8 { /// Return Bitboard with only Least Single Bit pub fn ls1b(bb: Bitboard) -> u64 { + if bb == 0 { + return 0 + } bb & !(bb - 1) } |