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misc.h
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62 lines (51 loc) · 2.01 KB
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/*
Stockfish, a UCI chess playing engine derived from Glaurung 2.1
Copyright (C) 2004-2025 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
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Stockfish is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef MISC_H_INCLUDED
#define MISC_H_INCLUDED
namespace Stockfish { // misc.h, /IsLittleEndian
// True if and only if the binary is compiled on a little-endian machine
static inline const std::uint16_t Le = 1;
static inline const bool IsLittleEndian = *reinterpret_cast<const char*>(&Le) == 1;
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;
};
#if defined(__GNUC__) && !defined(__clang__)
#if __GNUC__ >= 13
#define sf_assume(cond) __attribute__((assume(cond)))
#else
#define sf_assume(cond) \
do \
{ \
if (!(cond)) \
__builtin_unreachable(); \
} while (0)
#endif
#else
// do nothing for other compilers
#define sf_assume(cond)
#endif
#define sync_cout std::cout
#define sync_endl std::endl
} // namespace Stockfish
#endif // #ifndef MISC_H_INCLUDED