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Some cross-platform fixes #3

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cf00f37
Update CMakeLists.txt
tsoj Mar 20, 2024
02e4721
Update bitboard.hpp
tsoj Mar 20, 2024
c137d70
Update tt.hpp
tsoj Mar 20, 2024
941bdff
Update tt.hpp, fixed stupid thing
tsoj Mar 21, 2024
10dc26f
Update CMakeLists.txt
tsoj Mar 21, 2024
dd20286
Update CMakeLists.txt
tsoj Mar 21, 2024
4ee07c3
Update CMakeLists.txt
tsoj Mar 21, 2024
0ee439f
Update CMakeLists.txt
tsoj Mar 21, 2024
f87a082
Update CMakeLists.txt
tsoj Mar 21, 2024
8f1589c
Update CMakeLists.txt
tsoj Mar 21, 2024
1419156
Update CMakeLists.txt
tsoj Mar 21, 2024
8d41622
Update CMakeLists.txt
tsoj Mar 21, 2024
c8a4d99
Update CMakeLists.txt
tsoj Mar 21, 2024
19046ba
Update CMakeLists.txt
tsoj Mar 21, 2024
72179f2
Update CMakeLists.txt
tsoj Mar 21, 2024
181232f
Update CMakeLists.txt
tsoj Mar 21, 2024
38672bc
Update CMakeLists.txt
tsoj Mar 21, 2024
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2 changes: 2 additions & 0 deletions examples/tt.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,9 @@ class TT {

void prefetch(const std::uint64_t hash) const noexcept {
const auto idx = index(hash);
#ifndef __GNUC__
__builtin_prefetch(&entries_[idx]);
#endif
}

private:
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10 changes: 6 additions & 4 deletions src/CMakeLists.txt
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Expand Up @@ -5,10 +5,12 @@ project(Libataxx VERSION 1.0 LANGUAGES CXX)

# Flags
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_FLAGS "-fPIC -Wall -Wextra -Wshadow")
set(CMAKE_CXX_FLAGS_DEBUG "-g")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native -DNDEBUG")
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE)
if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
set(CMAKE_CXX_FLAGS "-fPIC -Wall -Wextra -Wshadow")
set(CMAKE_CXX_FLAGS_DEBUG "-g")
set(CMAKE_CXX_FLAGS_RELEASE "-O3 -march=native -DNDEBUG")
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE TRUE)
endif ()

# Default build type
if(NOT CMAKE_BUILD_TYPE)
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7 changes: 4 additions & 3 deletions src/libataxx/bitboard.hpp
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Expand Up @@ -3,6 +3,7 @@

#include <cassert>
#include <cstdint>
#include <bit>
#include "square.hpp"

namespace libataxx {
Expand Down Expand Up @@ -38,7 +39,7 @@ class BitboardIterator {
}

[[nodiscard]] constexpr Square operator*() const noexcept {
const int n = __builtin_ctzll(data_);
const int n = std::countr_zero(data_);
return Square{File{n % 8}, Rank{n / 8}};
}

Expand Down Expand Up @@ -69,7 +70,7 @@ class Bitboard {
}

[[nodiscard]] constexpr int count() const noexcept {
return __builtin_popcountll(data_);
return std::popcount(data_);
}

constexpr void set(const Square &sq) noexcept {
Expand Down Expand Up @@ -195,7 +196,7 @@ class Bitboard {
}

[[nodiscard]] constexpr int lsbll() const noexcept {
return __builtin_ctzll(data_);
return std::countr_zero(data_);
}

[[nodiscard]] constexpr Bitboard flip_vertical() const noexcept {
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