X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=src%2Ftypes.h;h=8e6356eb344f4d94b23323633014bb258dfecb00;hb=61c03b9d22de0c1ccf0c60af4e223775d4b3f7cc;hp=0c12d930490bb6c4516c817fe2950d67f4c45ec7;hpb=85559cc5972f93a2e7618d29b4b2cdcb79c55f98;p=stockfish
diff --git a/src/types.h b/src/types.h
index 0c12d930..8e6356eb 100644
--- a/src/types.h
+++ b/src/types.h
@@ -17,7 +17,6 @@
along with this program. If not, see .
*/
-
#if !defined(TYPES_H_INCLUDED)
#define TYPES_H_INCLUDED
@@ -27,6 +26,10 @@
#else
+// Disable some silly and noisy warning from MSVC compiler
+#pragma warning(disable: 4800) // Forcing value to bool 'true' or 'false'
+#pragma warning(disable: 4127) // Conditional expression is constant
+
typedef __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef __int16 int16;
@@ -47,6 +50,7 @@ typedef uint64_t Key;
// Bitboard type
typedef uint64_t Bitboard;
+#include
////
//// Configuration
@@ -109,4 +113,64 @@ inline void __cpuid(int CPUInfo[4], int)
}
#endif
+
+// Templetized operators used by enum types like Depth, Piece, Square and so on.
+// We don't want to write the same inline for each different enum. Note that we
+// pass by value to silence scaring warnings when using volatiles.
+// Because these templates override common operators and are included in all the
+// files, there is a possibility that the compiler silently performs some unwanted
+// overrides. To avoid possible very nasty bugs the templates are disabled by default
+// and must be enabled for each type on a case by case base. The enabling trick
+// uses template specialization, namely we just declare following struct.
+template struct TempletizedOperator;
+
+// Then to enable the enum type we use following macro that defines a specialization
+// of TempletizedOperator for the given enum T. Here is defined typedef Not_Enabled.
+// Name of typedef is chosen to produce somewhat informative compile error messages.
+#define ENABLE_OPERATORS_ON(T) \
+ template<> struct TempletizedOperator { typedef T Not_Enabled; }
+
+// Finally we use macro OK(T) to check if type T is enabled. The macro simply
+// tries to use Not_Enabled, if was not previously defined a compile error occurs.
+// The check is done fully at compile time and there is zero overhead at runtime.
+#define OK(T) typedef typename TempletizedOperator::Not_Enabled Type
+
+template
+inline T operator+ (const T d1, const T d2) { OK(T); return T(int(d1) + int(d2)); }
+
+template
+inline T operator- (const T d1, const T d2) { OK(T); return T(int(d1) - int(d2)); }
+
+template
+inline T operator* (int i, const T d) { OK(T); return T(i * int(d)); }
+
+template
+inline T operator* (const T d, int i) { OK(T); return T(int(d) * i); }
+
+template
+inline T operator/ (const T d, int i) { OK(T); return T(int(d) / i); }
+
+template
+inline T operator- (const T d) { OK(T); return T(-int(d)); }
+
+template
+inline T operator++ (T& d, int) { OK(T); d = T(int(d) + 1); return d; }
+
+template
+inline T operator-- (T& d, int) { OK(T); d = T(int(d) - 1); return d; }
+
+template
+inline void operator+= (T& d1, const T d2) { OK(T); d1 = d1 + d2; }
+
+template
+inline void operator-= (T& d1, const T d2) { OK(T); d1 = d1 - d2; }
+
+template
+inline void operator*= (T& d, int i) { OK(T); d = T(int(d) * i); }
+
+template
+inline void operator/= (T& d, int i) { OK(T); d = T(int(d) / i); }
+
+#undef OK
+
#endif // !defined(TYPES_H_INCLUDED)