QxStdOptional.h File Reference

Support std::optional<T> class (requires a C++17 compiler) to manage NULL database value, this header should be included just after <QxOrm.h> header file (ideally in a precompiled header) More...

#include <optional>
#include <QtCore/qdatastream.h>
#include <QxOrm.h>
#include <QxTraits/construct_null_qvariant.h>

Go to the source code of this file.

Classes
struct	qx::trait::get_sql_type< std::optional< T > >
struct	qx::cvt::detail::QxConvert_ToJson< std::optional< T > >
struct	qx::cvt::detail::QxConvert_FromJson< std::optional< T > >
struct	qx::cvt::detail::QxConvert_ToString< std::optional< T > >
struct	qx::cvt::detail::QxConvert_FromString< std::optional< T > >
struct	qx::cvt::detail::QxConvert_ToVariant< std::optional< T > >
struct	qx::cvt::detail::QxConvert_FromVariant< std::optional< T > >
Namespaces
namespace	qx
	Root namespace for all QxOrm library features.
namespace	qx::trait
	QxOrm library traits (template metaprogramming) not available in boost::type_traits library.
namespace	qx::cvt
	Provide global functions to convert any kind of objects to/from QString and QVariant format.
namespace	qx::cvt::detail
	Internal helper tools for qx::cvt namespace.
Functions
template<typename T >
QDataStream &	operator<< (QDataStream &stream, const std::optional< T > &t)
template<typename T >
QDataStream &	operator>> (QDataStream &stream, std::optional< T > &t)

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Detailed Description

Support std::optional<T> class (requires a C++17 compiler) to manage NULL database value, this header should be included just after <QxOrm.h> header file (ideally in a precompiled header)

Author:

Lionel Marty

Definition in file QxStdOptional.h.

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Function Documentation

template<typename T >

QDataStream& operator<<	(	QDataStream &	stream,
		const std::optional< T > &	t
	)

Definition at line 55 of file QxStdOptional.h.

template<typename T >

QDataStream& operator>>	(	QDataStream &	stream,
		std::optional< T > &	t
	)

Definition at line 64 of file QxStdOptional.h.