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Code Issues Releases Wiki Activity

Don't need to memset() EvalInfo

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Set manually to zero the few fields that are
optionally populated and that's enough.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2010-08-24 15:59:24 +02:00
parent d73eea3f71
commit 17d820e248
1 changed files with 6 additions and 6 deletions
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12
src/evaluate.cpp
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@ -23,7 +23,6 @@
//// ////
#include <cassert> #include <cassert>
#include <cstring>
#include "bitcount.h" #include "bitcount.h"
#include "evaluate.h" #include "evaluate.h"
@ -248,8 +247,6 @@ Value do_evaluate(const Position& pos, EvalInfo& ei) {
assert(pos.thread() >= 0 && pos.thread() < MAX_THREADS); assert(pos.thread() >= 0 && pos.thread() < MAX_THREADS);
assert(!pos.is_check()); assert(!pos.is_check());
memset(&ei, 0, sizeof(EvalInfo));
// Initialize by reading the incrementally updated scores included in the // Initialize by reading the incrementally updated scores included in the
// position object (material + piece square tables). // position object (material + piece square tables).
ei.value = pos.value(); ei.value = pos.value();
@ -430,8 +427,8 @@ namespace {
ei.kingZone[Us] = (b | (Us == WHITE ? b >> 8 : b << 8)); ei.kingZone[Us] = (b | (Us == WHITE ? b >> 8 : b << 8));
ei.attackedBy[Us][PAWN] = ei.pi->pawn_attacks(Us); ei.attackedBy[Us][PAWN] = ei.pi->pawn_attacks(Us);
b &= ei.attackedBy[Us][PAWN]; b &= ei.attackedBy[Us][PAWN];
if (b) ei.kingAttackersCount[Us] = b ? count_1s_max_15<HasPopCnt>(b) / 2 : 0;
ei.kingAttackersCount[Us] = count_1s_max_15<HasPopCnt>(b) / 2; ei.kingAdjacentZoneAttacksCount[Us] = ei.kingAttackersWeight[Us] = 0;
} }
@ -475,6 +472,8 @@ namespace {
const Color Them = (Us == WHITE ? BLACK : WHITE); const Color Them = (Us == WHITE ? BLACK : WHITE);
const Square* ptr = pos.piece_list_begin(Us, Piece); const Square* ptr = pos.piece_list_begin(Us, Piece);
ei.attackedBy[Us][Piece] = 0;
while ((s = *ptr++) != SQ_NONE) while ((s = *ptr++) != SQ_NONE)
{ {
// Find attacked squares, including x-ray attacks for bishops and rooks // Find attacked squares, including x-ray attacks for bishops and rooks
@ -716,7 +715,8 @@ namespace {
// result in a score change far bigger than the value of the captured piece. // result in a score change far bigger than the value of the captured piece.
ei.value -= Sign[Us] * KingDangerTable[Us][attackUnits]; ei.value -= Sign[Us] * KingDangerTable[Us][attackUnits];
ei.kingDanger[Us] = mg_value(KingDangerTable[Us][attackUnits]); ei.kingDanger[Us] = mg_value(KingDangerTable[Us][attackUnits]);
} } else
ei.kingDanger[Us] = VALUE_ZERO;
} }