- More performant roundEven

include/fennec/lang/detail/__int.h

@@ -22,6 +22,8 @@
 #if _MSC_VER
 #pragma warning(push)
 #pragma warning(disable:4117)
+
+#define __PTRDIFF_TYPE__ ptrdiff_t
 #endif
 
 #pragma push_macro("__cplusplus")

include/fennec/lang/float.h

@@ -80,7 +80,7 @@
 #define FLT_EPSILON fennec::bit_cast<float>(0x34000000)
 #define FLT_INF fennec::bit_cast<float>(0x7f800000)
 #define FLT_QUIET_NAN fennec::bit_cast<float>(0x7fc00000)
-#define FLT_SIGNALING_NAN fennec::bit_cast<float>(0x7fc00001)
+#define FLT_SIGNALING_NAN fennec::bit_cast<float>(0x7fa00000)
 #define FLT_DENORM_MIN fennec::bit_cast<float>(0x1)
 #define FLT_ROUND_ERR fennec::bit_cast<float>(0x3f000000)
 
@@ -132,7 +132,7 @@
 #define DBL_EPSILON fennec::bit_cast<double>(0x3cb0000000000000ll)
 #define DBL_INF fennec::bit_cast<double>(0x7ff0000000000000ll)
 #define DBL_QUIET_NAN fennec::bit_cast<double>(0x7ff8000000000000ll)
-#define DBL_SIGNALING_NAN fennec::bit_cast<double>(0x7ff0000000000001ll)
+#define DBL_SIGNALING_NAN fennec::bit_cast<double>(0x7ff4000000000000ll)
 #define DBL_DENORM_MIN fennec::bit_cast<double>(0x1ll)
 #define DBL_ROUND_ERR fennec::bit_cast<double>(0x3fe0000000000000ll)
 

include/fennec/lang/integer.h

@@ -57,26 +57,26 @@
 #define CHAR_DIG 0x2
 #define CHAR_DECIMAL_DIG 0x0
 #define CHAR_RADIX 0x2
-#define CHAR_TRAPS 0xfalse
+#define CHAR_TRAPS 0xtrue
 #define CHAR_MIN 0x80
 #define CHAR_MAX 0x7f
 
-#define WCHAR_IS_SIGNED false
+#define WCHAR_IS_SIGNED true
 #define WCHAR_ROUNDS 0x0
-#define WCHAR_RADIX_DIG 0x10
-#define WCHAR_DIG 0x4
+#define WCHAR_RADIX_DIG 0x1f
+#define WCHAR_DIG 0x9
 #define WCHAR_DECIMAL_DIG 0x0
 #define WCHAR_RADIX 0x2
-#define WCHAR_TRAPS 0xfalse
-#define WCHAR_MIN 0x0
-#define WCHAR_MAX 0xffff
+#define WCHAR_TRAPS 0xtrue
+#define WCHAR_MIN 0x80000000
+#define WCHAR_MAX 0x7fffffff
 
 #define SCHAR_ROUNDS 0x0
 #define SCHAR_RADIX_DIG 0x7
 #define SCHAR_DIG 0x2
 #define SCHAR_DECIMAL_DIG 0x0
 #define SCHAR_RADIX 0x2
-#define SCHAR_TRAPS 0xfalse
+#define SCHAR_TRAPS 0xtrue
 #define SCHAR_MIN 0x80
 #define SCHAR_MAX 0x7f
 
@@ -85,7 +85,7 @@
 #define UCHAR_DIG 0x2
 #define UCHAR_DECIMAL_DIG 0x0
 #define UCHAR_RADIX 0x2
-#define UCHAR_TRAPS 0xfalse
+#define UCHAR_TRAPS 0xtrue
 #define UCHAR_MIN 0x0
 #define UCHAR_MAX 0xff
 
@@ -94,7 +94,7 @@
 #define SHORT_DIG 0x4
 #define SHORT_DECIMAL_DIG 0x0
 #define SHORT_RADIX 0x2
-#define SHORT_TRAPS 0xfalse
+#define SHORT_TRAPS 0xtrue
 #define SHORT_MIN 0x8000
 #define SHORT_MAX 0x7fff
 
@@ -103,7 +103,7 @@
 #define USHORT_DIG 0x4
 #define USHORT_DECIMAL_DIG 0x0
 #define USHORT_RADIX 0x2
-#define USHORT_TRAPS 0xfalse
+#define USHORT_TRAPS 0xtrue
 #define USHORT_MIN 0x0
 #define USHORT_MAX 0xffff
 
@@ -112,7 +112,7 @@
 #define INT_DIG 0x9
 #define INT_DECIMAL_DIG 0x0
 #define INT_RADIX 0x2
-#define INT_TRAPS 0xfalse
+#define INT_TRAPS 0xtrue
 #define INT_MIN 0x80000000
 #define INT_MAX 0x7fffffff
 
@@ -121,34 +121,34 @@
 #define UINT_DIG 0x9
 #define UINT_DECIMAL_DIG 0x0
 #define UINT_RADIX 0x2
-#define UINT_TRAPS 0xfalse
+#define UINT_TRAPS 0xtrue
 #define UINT_MIN 0x0
 #define UINT_MAX 0xffffffff
 
 #define LONG_ROUNDS 0x0
-#define LONG_RADIX_DIG 0x1f
-#define LONG_DIG 0x9
+#define LONG_RADIX_DIG 0x3f
+#define LONG_DIG 0x12
 #define LONG_DECIMAL_DIG 0x0
 #define LONG_RADIX 0x2
-#define LONG_TRAPS 0xfalse
-#define LONG_MIN 0x80000000
-#define LONG_MAX 0x7fffffff
+#define LONG_TRAPS 0xtrue
+#define LONG_MIN 0x8000000000000000
+#define LONG_MAX 0x7fffffffffffffff
 
 #define ULONG_ROUNDS 0x0
-#define ULONG_RADIX_DIG 0x20
-#define ULONG_DIG 0x9
+#define ULONG_RADIX_DIG 0x40
+#define ULONG_DIG 0x13
 #define ULONG_DECIMAL_DIG 0x0
 #define ULONG_RADIX 0x2
-#define ULONG_TRAPS 0xfalse
+#define ULONG_TRAPS 0xtrue
 #define ULONG_MIN 0x0
-#define ULONG_MAX 0xffffffff
+#define ULONG_MAX 0xffffffffffffffff
 
 #define LLONG_ROUNDS 0x0
 #define LLONG_RADIX_DIG 0x3f
 #define LLONG_DIG 0x12
 #define LLONG_DECIMAL_DIG 0x0
 #define LLONG_RADIX 0x2
-#define LLONG_TRAPS 0xfalse
+#define LLONG_TRAPS 0xtrue
 #define LLONG_MIN 0x8000000000000000
 #define LLONG_MAX 0x7fffffffffffffff
 
@@ -157,7 +157,7 @@
 #define ULLONG_DIG 0x13
 #define ULLONG_DECIMAL_DIG 0x0
 #define ULLONG_RADIX 0x2
-#define ULLONG_TRAPS 0xfalse
+#define ULLONG_TRAPS 0xtrue
 #define ULLONG_MIN 0x0
 #define ULLONG_MAX 0xffffffffffffffff
 

include/fennec/lang/types.h

@@ -256,7 +256,7 @@ namespace fennec
 	using intmax_t  = intmax_t;   ///< \brief Maximum Width Signed Integer Type
 	using uintmax_t = uintmax_t;  ///< \brief Maximum Width Unsigned Integer Type
 	using size_t    = size_t;     ///< \brief Unsigned Integer Type Returned By `sizeof`, `sizeof...`, and `alignof`
-	using ptrdiff_t = ptrdiff_t;  ///< \brief Signed Integer Type Returned by the Subtraction of two Pointers
+	using ptrdiff_t = __PTRDIFF_TYPE__;  ///< \brief Signed Integer Type Returned by the Subtraction of two Pointers
 
 	class undefined_t;                         ///< \brief undefined class for SFINAE
 	template<typename...> using void_t = void; ///< \brief Void type used for SFINAE

include/fennec/math/common.h

@@ -451,15 +451,23 @@ constexpr vector<genType, i...> trunc(const vector<genType, i...>& x)
 template<typename genType>
 constexpr genType roundEven(genType x)
 {
-	const float e = numeric_limits<genType>::epsilon();
-	float f = x - fennec::floor(x);
-	if (fennec::abs(f - genType(0.5)) > e)
+	//const genType e = numeric_limits<genType>::epsilon();
+	//genType f = x - fennec::floor(x);
+	//if (fennec::abs(f - genType(0.5)) > e)
+	//	return fennec::round(x);
+	//
+	//genType i = fennec::floor(x);
+	//genType r = i / 2;
+	//bool up = r - fennec::floor(r) > e;
+	//return i + static_cast<genType>(up);
+	static const genType e = std::numeric_limits<genType>::epsilon();
+	genType i = fennec::floor(x);
+	genType f = x - i;
+	if (abs(f - genType(0.5)) > e)
 		return fennec::round(x);
 
-	float i = fennec::floor(x);
-	float r = i / 2;
-	bool up = r - fennec::floor(r) > e;
-	return i + static_cast<genType>(up);
+	bool dir = (static_cast<int>(x) % 2);
+	return dir ? i + 1 : i;
 }
 
 // Vector Specializations ----------------------------------------------------------------------------------------------