Optional.h File Reference

#include <IceUtil/Config.h>

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Classes
class	IceUtil::Optional< T >
	Encapsulates an optional value, which may or may not be present. More...

Namespaces
namespace	IceUtil

Functions
template<class T>
Optional< T >	IceUtil::makeOptional (const T &v)
	Constructs an optional from the given value.
template<typename T, typename U>
bool	IceUtil::operator!= (const Optional< T > &lhs, const Optional< U > &rhs)
template<typename T, typename Y>
bool	IceUtil::operator!= (const Optional< T > &lhs, const Y &rhs)
template<typename T, typename Y>
bool	IceUtil::operator!= (const Y &lhs, const Optional< T > &rhs)
template<typename T, typename U>
bool	IceUtil::operator< (const Optional< T > &lhs, const Optional< U > &rhs)
template<typename T, typename Y>
bool	IceUtil::operator< (const Optional< T > &lhs, const Y &rhs)
template<typename T, typename Y>
bool	IceUtil::operator< (const Y &lhs, const Optional< T > &rhs)
template<typename T, typename U>
bool	IceUtil::operator<= (const Optional< T > &lhs, const Optional< U > &rhs)
template<typename T, typename Y>
bool	IceUtil::operator<= (const Optional< T > &lhs, const Y &rhs)
template<typename T, typename Y>
bool	IceUtil::operator<= (const Y &lhs, const Optional< T > &rhs)
template<typename T, typename U>
bool	IceUtil::operator== (const Optional< T > &lhs, const Optional< U > &rhs)
template<typename T, typename Y>
bool	IceUtil::operator== (const Optional< T > &lhs, const Y &rhs)
template<typename T, typename Y>
bool	IceUtil::operator== (const Y &lhs, const Optional< T > &rhs)
template<typename T, typename U>
bool	IceUtil::operator> (const Optional< T > &lhs, const Optional< U > &rhs)
template<typename T, typename Y>
bool	IceUtil::operator> (const Optional< T > &lhs, const Y &rhs)
template<typename T, typename Y>
bool	IceUtil::operator> (const Y &lhs, const Optional< T > &rhs)
template<typename T, typename U>
bool	IceUtil::operator>= (const Optional< T > &lhs, const Optional< U > &rhs)
template<typename T, typename Y>
bool	IceUtil::operator>= (const Optional< T > &lhs, const Y &rhs)
template<typename T, typename Y>
bool	IceUtil::operator>= (const Y &lhs, const Optional< T > &rhs)

Variables
const IceUtilInternal::NoneType	IceUtil::None = {}
	A sentinel value used to indicate that no optional value was provided.