X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitboard.cpp;h=5328321e1025863be2289f1ef15af68fafec3f13;hp=555cd13ca78960895e22f84a1a47f03830deca2d;hb=69eb391cd779223c331fb0de80392cbd323055a9;hpb=27ba611a3da37423a3502e49beeebe11c9a11d8e diff --git a/src/bitboard.cpp b/src/bitboard.cpp index 555cd13c..5328321e 100644 --- a/src/bitboard.cpp +++ b/src/bitboard.cpp @@ -54,9 +54,7 @@ namespace { Bitboard RookTable[0x19000]; // To store rook attacks Bitboard BishopTable[0x1480]; // To store bishop attacks - typedef unsigned (Fn)(const Magic&, Bitboard); - - void init_magics(Bitboard table[], Magic magics[], Square deltas[], Fn index); + void init_magics(Bitboard table[], Magic magics[], Square deltas[]); // bsf_index() returns the index into BSFTable[] to look up the bitscan. Uses // Matt Taylor's folding for 32 bit case, extended to 64 bit by Kim Walisch. @@ -204,8 +202,8 @@ void Bitboards::init() { Square RookDeltas[] = { NORTH, EAST, SOUTH, WEST }; Square BishopDeltas[] = { NORTH_EAST, SOUTH_EAST, SOUTH_WEST, NORTH_WEST }; - init_magics(RookTable, RookMagics, RookDeltas, magic_index); - init_magics(BishopTable, BishopMagics, BishopDeltas, magic_index); + init_magics(RookTable, RookMagics, RookDeltas); + init_magics(BishopTable, BishopMagics, BishopDeltas); for (Square s1 = SQ_A1; s1 <= SQ_H8; ++s1) { @@ -251,7 +249,7 @@ namespace { // chessprogramming.wikispaces.com/Magic+Bitboards. In particular, here we // use the so called "fancy" approach. - void init_magics(Bitboard table[], Magic magics[], Square deltas[], Fn index) { + void init_magics(Bitboard table[], Magic magics[], Square deltas[]) { int seeds[][RANK_NB] = { { 8977, 44560, 54343, 38998, 5731, 95205, 104912, 17020 }, { 728, 10316, 55013, 32803, 12281, 15100, 16645, 255 } }; @@ -311,7 +309,7 @@ namespace { // m.attacks[] after every failed attempt. for (++cnt, i = 0; i < size; ++i) { - unsigned idx = index(m, occupancy[i]); + unsigned idx = m.index(occupancy[i]); if (epoch[idx] < cnt) {