2 Stockfish, a UCI chess playing engine derived from Glaurung 2.1
3 Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
4 Copyright (C) 2008-2010 Marco Costalba, Joona Kiiski, Tord Romstad
6 Stockfish is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 Stockfish is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #if !defined(TYPES_H_INCLUDED)
21 #define TYPES_H_INCLUDED
23 #if !defined(_MSC_VER)
29 // Disable some silly and noisy warning from MSVC compiler
30 #pragma warning(disable: 4800) // Forcing value to bool 'true' or 'false'
31 #pragma warning(disable: 4127) // Conditional expression is constant
33 typedef __int8 int8_t;
34 typedef unsigned __int8 uint8_t;
35 typedef __int16 int16;
36 typedef unsigned __int16 uint16_t;
37 typedef __int32 int32_t;
38 typedef unsigned __int32 uint32_t;
39 typedef __int64 int64_t;
40 typedef unsigned __int64 uint64_t;
42 typedef __int16 int16_t;
43 typedef __int64 int64_t;
45 #endif // !defined(_MSC_VER)
51 typedef uint64_t Bitboard;
59 //// For Linux and OSX configuration is done automatically using Makefile.
60 //// To get started type "make help".
62 //// For windows part of the configuration is detected automatically, but
63 //// some switches need to be set manually:
65 //// -DNDEBUG | Disable debugging mode. Use always.
67 //// -DNO_PREFETCH | Disable use of prefetch asm-instruction. A must if you want the
68 //// | executable to run on some very old machines.
70 //// -DUSE_POPCNT | Add runtime support for use of popcnt asm-instruction.
71 //// | Works only in 64-bit mode. For compiling requires hardware
72 //// | with popcnt support. Around 4% speed-up.
74 //// -DOLD_LOCKS | By default under Windows are used the fast Slim Reader/Writer (SRW)
75 //// | Locks and Condition Variables: these are not supported by Windows XP
76 //// | and older, to compile for those platforms you should enable OLD_LOCKS.
78 // Automatic detection for 64-bit under Windows
83 // Automatic detection for use of bsfq asm-instruction under Windows.
84 // Works only in 64-bit mode. Does not work with MSVC.
85 #if defined(_WIN64) && defined(__INTEL_COMPILER)
89 // Cache line alignment specification
90 #if defined(_MSC_VER) || defined(__INTEL_COMPILER)
91 #define CACHE_LINE_ALIGNMENT __declspec(align(64))
93 #define CACHE_LINE_ALIGNMENT __attribute__ ((aligned(64)))
96 // Define a __cpuid() function for gcc compilers, for Intel and MSVC
97 // is already available as an intrinsic.
100 #elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
101 inline void __cpuid(int CPUInfo[4], int InfoType)
103 int* eax = CPUInfo + 0;
104 int* ebx = CPUInfo + 1;
105 int* ecx = CPUInfo + 2;
106 int* edx = CPUInfo + 3;
110 __asm__("cpuid" : "=a" (*eax), "=b" (*ebx), "=c" (*ecx), "=d" (*edx)
111 : "0" (*eax), "2" (*ecx));
114 inline void __cpuid(int CPUInfo[4], int)
116 CPUInfo[0] = CPUInfo[1] = CPUInfo[2] = CPUInfo[3] = 0;
121 // Templetized operators used by enum types like Depth, Piece, Square and so on.
122 // We don't want to write the same inline for each different enum. Note that we
123 // pass by value to silence scaring warnings when using volatiles.
124 // Because these templates override common operators and are included in all the
125 // files, there is a possibility that the compiler silently performs some unwanted
126 // overrides. To avoid possible very nasty bugs the templates are disabled by default
127 // and must be enabled for each type on a case by case base. The enabling trick
128 // uses template specialization, namely we just declare following struct.
129 template<typename T> struct TempletizedOperator;
131 // Then to enable the enum type we use following macro that defines a specialization
132 // of TempletizedOperator for the given enum T. Here is defined typedef Not_Enabled.
133 // Name of typedef is chosen to produce somewhat informative compile error messages.
134 #define ENABLE_OPERATORS_ON(T) \
135 template<> struct TempletizedOperator<T> { typedef T Not_Enabled; }
137 // Finally we use macro OK(T) to check if type T is enabled. The macro simply
138 // tries to use Not_Enabled, if was not previously defined a compile error occurs.
139 // The check is done fully at compile time and there is zero overhead at runtime.
140 #define OK(T) typedef typename TempletizedOperator<T>::Not_Enabled Type
143 inline T operator+ (const T d1, const T d2) { OK(T); return T(int(d1) + int(d2)); }
146 inline T operator- (const T d1, const T d2) { OK(T); return T(int(d1) - int(d2)); }
149 inline T operator* (int i, const T d) { OK(T); return T(i * int(d)); }
152 inline T operator* (const T d, int i) { OK(T); return T(int(d) * i); }
155 inline T operator/ (const T d, int i) { OK(T); return T(int(d) / i); }
158 inline T operator- (const T d) { OK(T); return T(-int(d)); }
161 inline T operator++ (T& d, int) { OK(T); d = T(int(d) + 1); return d; }
164 inline T operator-- (T& d, int) { OK(T); d = T(int(d) - 1); return d; }
167 inline void operator+= (T& d1, const T d2) { OK(T); d1 = d1 + d2; }
170 inline void operator-= (T& d1, const T d2) { OK(T); d1 = d1 - d2; }
173 inline void operator*= (T& d, int i) { OK(T); d = T(int(d) * i); }
176 inline void operator/= (T& d, int i) { OK(T); d = T(int(d) / i); }
180 #endif // !defined(TYPES_H_INCLUDED)