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Retire lastMove from Position class

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Is not used in any way so remove.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-05-20 15:12:45 +02:00
parent d3c4618b3a
commit 20c2a31464
2 changed files with 14 additions and 19 deletions
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4
src/position.cpp
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@@ -1425,10 +1425,9 @@ void Position::do_null_move(StateInfo& backupSt) {
// Back up the information necessary to undo the null move to the supplied
// StateInfo object. In the case of a null move, the only thing we need to
// remember is the last move made and the en passant square.
// remember is the en passant square.
// Note that differently from normal case here backupSt is actually used as
// a backup storage not as a new state to be used.
backupSt.lastMove = st->lastMove;
backupSt.epSquare = st->epSquare;
backupSt.previous = st->previous;
st->previous = &backupSt;
@@ -1462,7 +1461,6 @@ void Position::undo_null_move() {
assert(!is_check());
// Restore information from the our backup StateInfo object
st->lastMove = st->previous->lastMove;
st->epSquare = st->previous->epSquare;
st->previous = st->previous->previous;