X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fmisc.h;h=69d470c22f8a0098273781739411372d98771ad3;hb=38a80c0b47397dbdd9167ec1476dfd3c033020d6;hp=7a3369e8ed512e9427c50e5c5f625cf19d176baa;hpb=73018a03375b4b72ee482eb5a4a2152d7e4f0aac;p=stockfish diff --git a/src/misc.h b/src/misc.h index 7a3369e8..69d470c2 100644 --- a/src/misc.h +++ b/src/misc.h @@ -1,6 +1,6 @@ /* Stockfish, a UCI chess playing engine derived from Glaurung 2.1 - Copyright (C) 2004-2021 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 @@ -28,6 +28,9 @@ #include "types.h" +#define stringify2(x) #x +#define stringify(x) stringify2(x) + namespace Stockfish { std::string engine_info(bool to_uci = false); @@ -39,12 +42,13 @@ void std_aligned_free(void* ptr); 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 @@ -85,76 +89,21 @@ static inline const union { uint32_t i; char c[4]; } Le = { 0x01020304 }; static inline const bool IsLittleEndian = (Le.c[0] == 4); -// RunningAverage : a class to calculate a running average of a series of values. -// For efficiency, all computations are done with integers. -class RunningAverage { - public: - - // Constructor - RunningAverage() {} - - // Reset the running average to rational value p / q - void set(int64_t p, int64_t q) - { average = p * PERIOD * RESOLUTION / q; } - - // Update average with value v - void update(int64_t v) - { average = RESOLUTION * v + (PERIOD - 1) * average / PERIOD; } - - // Test if average is strictly greater than rational a / b - bool is_greater(int64_t a, int64_t b) - { return b * average > a * PERIOD * RESOLUTION ; } - - private : - static constexpr int64_t PERIOD = 4096; - static constexpr int64_t RESOLUTION = 1024; - int64_t average; -}; - - -template -class ValueListInserter { -public: - ValueListInserter(T* v, std::size_t& s) : - values(v), - size(&s) - { - } - - void push_back(const T& value) { values[(*size)++] = value; } -private: - T* values; - std::size_t* size; -}; - template class ValueList { public: std::size_t size() const { return size_; } - void resize(std::size_t newSize) { size_ = newSize; } void push_back(const T& value) { values_[size_++] = value; } - T& operator[](std::size_t index) { return values_[index]; } - T* begin() { return values_; } - T* end() { return values_ + size_; } - const T& operator[](std::size_t index) const { return values_[index]; } const T* begin() const { return values_; } const T* end() const { return values_ + size_; } - operator ValueListInserter() { return ValueListInserter(values_, size_); } - - void swap(ValueList& other) { - const std::size_t maxSize = std::max(size_, other.size_); - for (std::size_t i = 0; i < maxSize; ++i) { - std::swap(values_[i], other.values_[i]); - } - std::swap(size_, other.size_); - } 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). @@ -193,7 +142,7 @@ public: inline uint64_t mul_hi64(uint64_t a, uint64_t b) { #if defined(__GNUC__) && defined(IS_64BIT) - __extension__ typedef unsigned __int128 uint128; + __extension__ using uint128 = unsigned __int128; return ((uint128)a * (uint128)b) >> 64; #else uint64_t aL = (uint32_t)a, aH = a >> 32;