Added eqemu::any

common/CMakeLists.txt

@@ -93,6 +93,7 @@ SET(common_sources
 )
 
 SET(common_headers
+	any.h
 	base_packet.h
 	base_data.h
 	bodytypes.h

common/any.h

@@ -0,0 +1,190 @@
+/*
+ *  Boost Software License - Version 1.0 - August 17th, 2003
+ *  
+ *  Permission is hereby granted, free of charge, to any person or organization
+ *  obtaining a copy of the software and accompanying documentation covered by
+ *  this license (the "Software") to use, reproduce, display, distribute,
+ *  execute, and transmit the Software, and to prepare derivative works of the
+ *  Software, and to permit third-parties to whom the Software is furnished to
+ *  do so, all subject to the following:
+ *  
+ *  The copyright notices in the Software and this entire statement, including
+ *  the above license grant, this restriction and the following disclaimer,
+ *  must be included in all copies of the Software, in whole or in part, and
+ *  all derivative works of the Software, unless such copies or derivative
+ *  works are solely in the form of machine-executable object code generated by
+ *  a source language processor.
+ *  
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+ *  SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+ *  FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ *  DEALINGS IN THE SOFTWARE.
+ */
+
+// EQEmu::Any is a modified version of Boost::Any and as such retains the Boost licensing.
+
+#ifndef EQEMU_COMMON_ANY_H
+#define EQEMU_COMMON_ANY_H
+
+#include <algorithm>
+#include <typeinfo>
+
+namespace EQEmu
+{
+	class Any
+	{
+	public:
+		Any()
+			: content(nullptr) 
+		{
+		}
+
+		template<typename ValueType>
+		Any(const ValueType &value)
+			: content(new Holder<ValueType>(value))
+		{
+		}
+
+		Any(const Any &other)
+			: content(other.content ? other.content->clone() : 0)
+		{
+		}
+		
+		~Any()
+		{
+			if(content)
+				delete content;
+		}
+
+		Any& swap(Any &rhs)
+		{
+			std::swap(content, rhs.content);
+			return *this;
+		}
+
+		template<typename ValueType>
+		Any& operator=(const ValueType &rhs)
+		{
+			Any(rhs).swap(*this);
+			return *this;
+		}
+
+		Any& operator=(Any rhs)
+		{
+			rhs.swap(*this);
+			return *this;
+		}
+
+		bool empty() const
+		{
+			return !content;
+		}
+
+		const std::type_info& type() const
+		{
+			return content ? content->type() : typeid(void);
+		}
+
+		class Placeholder
+		{
+		public:
+			virtual ~Placeholder()
+			{
+			}
+
+			virtual const std::type_info& type() const = 0;
+			virtual Placeholder* clone() const = 0;
+		};
+
+
+		template<typename ValueType>
+		class Holder : public Placeholder
+		{
+		public:
+			Holder(const ValueType &value)
+				: held(value)
+			{
+			}
+
+			virtual const std::type_info& type() const
+			{
+				return typeid(ValueType);
+			}
+
+			virtual Placeholder* clone() const
+			{
+				return new Holder(held);
+			}
+
+			 ValueType held;
+
+		private:
+			Holder& operator=(const Holder&);
+		};
+
+	private:
+		template<typename ValueType>
+		friend ValueType* any_cast(Any*);
+
+		template<typename ValueType>
+		friend ValueType* unsafe_any_cast(Any*);
+
+		Placeholder* content;
+	};
+
+	class bad_any_cast : public std::bad_cast
+	{
+	public:
+		virtual const char * what() const throw()
+		{
+			return "DBI::bad_any_cast: failed conversion using DBI::any_cast";
+		}
+	};
+
+	template<typename ValueType>
+	ValueType* any_cast(Any* operand)
+	{
+		return operand && 
+			operand->type() == typeid(ValueType) ? &static_cast<Any::Holder<ValueType>*>(operand->content)->held : nullptr;
+	}
+
+	template<typename ValueType>
+	inline const ValueType* any_cast(const Any* operand)
+	{
+		return any_cast<ValueType>(const_cast<Any*>(operand));
+	}
+
+	template<typename ValueType>
+	ValueType any_cast(Any& operand)
+	{
+		typedef typename std::remove_reference<ValueType>::type nonref;
+		nonref* result = any_cast<nonref>(&operand);
+		if(!result)
+			throw bad_any_cast();
+		return *result;
+	}
+	
+	template<typename ValueType>
+	inline ValueType any_cast(const Any& operand)
+	{
+		typedef typename std::remove_reference<ValueType>::type nonref;
+		return any_cast<const nonref&>(const_cast<Any&>(operand));
+	}
+
+	template<typename ValueType>
+	inline ValueType* unsafe_any_cast(Any* operand)
+	{
+		return &static_cast<Any::Holder<ValueType>*>(operand->content)->held;
+	}
+
+	template<typename ValueType>
+	inline const ValueType* unsafe_any_cast(const Any* operand)
+	{
+		return unsafe_any_cast<ValueType>(const_cast<Any*>(operand));
+	}
+}
+
+#endif

tests/string_util_test.h

@@ -42,7 +42,7 @@ public:
 		float f = 3.1416;
 		
 		auto s = StringFormat(fmt, c, i, f);
-		TEST_ASSERT(s.length() == 17);
+		TEST_ASSERT_EQUALS(s.length(), 17);
 		TEST_ASSERT(s.compare("Test: a 2014 3.14") == 0);
 	}