/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
- Copyright (C) 2004-2020 The Stockfish developers (see AUTHORS file)
+ Copyright (C) 2004-2023 The Stockfish developers (see AUTHORS file)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <cassert>
#include <chrono>
-#include <ostream>
-#include <string>
-#include <vector>
+#include <cstddef>
#include <cstdint>
+#include <iosfwd>
+#include <string>
+
+#define stringify2(x) #x
+#define stringify(x) stringify2(x)
-#include "types.h"
+namespace Stockfish {
-const std::string engine_info(bool to_uci = false);
-const std::string compiler_info();
+std::string engine_info(bool to_uci = false);
+std::string compiler_info();
void prefetch(void* addr);
void start_logger(const std::string& fname);
void* std_aligned_alloc(size_t alignment, size_t size);
void* aligned_large_pages_alloc(size_t size); // memory aligned by page size, min alignment: 4096 bytes
void aligned_large_pages_free(void* mem); // nop if mem == nullptr
-void dbg_hit_on(bool b);
-void dbg_hit_on(bool c, bool b);
-void dbg_mean_of(int v);
+void dbg_hit_on(bool cond, int slot = 0);
+void dbg_mean_of(int64_t value, int slot = 0);
+void dbg_stdev_of(int64_t value, int slot = 0);
+void dbg_correl_of(int64_t value1, int64_t value2, int slot = 0);
void dbg_print();
-typedef std::chrono::milliseconds::rep TimePoint; // A value in milliseconds
+using TimePoint = std::chrono::milliseconds::rep; // A value in milliseconds
static_assert(sizeof(TimePoint) == sizeof(int64_t), "TimePoint should be 64 bits");
inline TimePoint now() {
return std::chrono::duration_cast<std::chrono::milliseconds>
(std::chrono::steady_clock::now().time_since_epoch()).count();
}
-template<class Entry, int Size>
-struct HashTable {
- Entry* operator[](Key key) { return &table[(uint32_t)key & (Size - 1)]; }
-
-private:
- std::vector<Entry> table = std::vector<Entry>(Size); // Allocate on the heap
-};
-
enum SyncCout { IO_LOCK, IO_UNLOCK };
std::ostream& operator<<(std::ostream&, SyncCout);
#define sync_cout std::cout << IO_LOCK
#define sync_endl std::endl << IO_UNLOCK
-// `ptr` must point to an array of size at least
-// `sizeof(T) * N + alignment` bytes, where `N` is the
-// number of elements in the array.
+
+// align_ptr_up() : get the first aligned element of an array.
+// ptr must point to an array of size at least `sizeof(T) * N + alignment` bytes,
+// where N is the number of elements in the array.
template <uintptr_t Alignment, typename T>
T* align_ptr_up(T* ptr)
{
return reinterpret_cast<T*>(reinterpret_cast<char*>((ptrint + (Alignment - 1)) / Alignment * Alignment));
}
+
+// IsLittleEndian : true if and only if the binary is compiled on a little endian machine
+static inline const union { uint32_t i; char c[4]; } Le = { 0x01020304 };
+static inline const bool IsLittleEndian = (Le.c[0] == 4);
+
+
+template <typename T, std::size_t MaxSize>
+class ValueList {
+
+public:
+ std::size_t size() const { return size_; }
+ void push_back(const T& value) { values_[size_++] = value; }
+ const T* begin() const { return values_; }
+ const T* end() const { return values_ + size_; }
+ const T& operator[](int index) const { return values_[index]; }
+
+private:
+ T values_[MaxSize];
+ std::size_t size_ = 0;
+};
+
+
/// xorshift64star Pseudo-Random Number Generator
/// This class is based on original code written and dedicated
/// to the public domain by Sebastiano Vigna (2014).
inline uint64_t mul_hi64(uint64_t a, uint64_t b) {
#if defined(__GNUC__) && defined(IS_64BIT)
- __extension__ typedef unsigned __int128 uint128;
- return ((uint128)a * (uint128)b) >> 64;
+ __extension__ using uint128 = unsigned __int128;
+ return (uint128(a) * uint128(b)) >> 64;
#else
- uint64_t aL = (uint32_t)a, aH = a >> 32;
- uint64_t bL = (uint32_t)b, bH = b >> 32;
+ uint64_t aL = uint32_t(a), aH = a >> 32;
+ uint64_t bL = uint32_t(b), bH = b >> 32;
uint64_t c1 = (aL * bL) >> 32;
uint64_t c2 = aH * bL + c1;
- uint64_t c3 = aL * bH + (uint32_t)c2;
+ uint64_t c3 = aL * bH + uint32_t(c2);
return aH * bH + (c2 >> 32) + (c3 >> 32);
#endif
}
extern std::string workingDirectory; // path of the working directory
}
+} // namespace Stockfish
+
#endif // #ifndef MISC_H_INCLUDED