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Simplify MovePickerExt<>

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Now that we don't special case the root moves anymore
we don't need to pass NodeType anymore as template parameter,
a simple bool to detect a SpNode will be enough.

Spotted by Joona.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2011-08-05 07:23:54 +01:00
parent 7902d6089e
commit 30b3edf328
1 changed files with 3 additions and 9 deletions
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12
src/search.cpp
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@ -216,14 +216,14 @@ namespace {
// MovePickerExt template class extends MovePicker and allows to choose at compile
// time the proper moves source according to the type of node. In the default case
// we simply create and use a standard MovePicker object.
template<NodeType> struct MovePickerExt : public MovePicker {
template<bool SpNode> struct MovePickerExt : public MovePicker {
MovePickerExt(const Position& p, Move ttm, Depth d, const History& h, SearchStack* ss, Value b)
: MovePicker(p, ttm, d, h, ss, b) {}
};
// In case of a SpNode we use split point's shared MovePicker object as moves source
template<> struct MovePickerExt<SplitPointNonPV> : public MovePicker {
template<> struct MovePickerExt<true> : public MovePicker {
MovePickerExt(const Position& p, Move ttm, Depth d, const History& h, SearchStack* ss, Value b)
: MovePicker(p, ttm, d, h, ss, b), mp(ss->sp->mp) {}
@ -232,12 +232,6 @@ namespace {
MovePicker* mp;
};
template<> struct MovePickerExt<SplitPointPV> : public MovePickerExt<SplitPointNonPV> {
MovePickerExt(const Position& p, Move ttm, Depth d, const History& h, SearchStack* ss, Value b)
: MovePickerExt<SplitPointNonPV>(p, ttm, d, h, ss, b) {}
};
// Overload operator<<() to make it easier to print moves in a coordinate
// notation compatible with UCI protocol.
std::ostream& operator<<(std::ostream& os, Move m) {
@ -946,7 +940,7 @@ namespace {
split_point_start: // At split points actual search starts from here
// Initialize a MovePicker object for the current position
MovePickerExt<NT> mp(pos, ttMove, depth, H, ss, PvNode ? -VALUE_INFINITE : beta);
MovePickerExt<SpNode> mp(pos, ttMove, depth, H, ss, PvNode ? -VALUE_INFINITE : beta);
CheckInfo ci(pos);
ss->bestMove = MOVE_NONE;
futilityBase = ss->eval + ss->evalMargin;