union_caster Union Template Reference
[Conversion Library]

#include <stlsoft/conversion/union_cast.hpp>

List of all members.

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Detailed Description

template<typename TO, typename FROM, bool B_CHECK_ALIGN = true>
union stlsoft::union_caster< TO, FROM, B_CHECK_ALIGN >

Cast class used by the union_cast cast function.

This class (union) effects conversion from one type to another, without the use of casts.

Parameters:

	TO	The type to cast to
	FROM	The type to cast from
	B_CHECK_ALIGN	Determines the default checking behaviour. If 0, no checking on alignment is conducted

Note:

This technique is non-portable, and you use this class at your own risk. Notwithstanding that, the TO and FROM types have to be the same size, so the technique is widely usable.

Public Types
Member Types
typedef TO	to_type
	The type to cast to.
typedef FROM	from_type
	The type to cast from.
typedef union_caster< TO, FROM, B_CHECK_ALIGN >	class_type
	The current instantiation of the type.
Public Member Functions
Construction
	union_caster (from_type const from, bool bCheckAlign=B_CHECK_ALIGN)
	Conversion constructor.
Conversion
	operator to_type () const
	Implicit conversion operator.

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Member Typedef Documentation

typedef TO to_type

The type to cast to.

typedef FROM from_type

The type to cast from.

typedef union_caster<TO, FROM, B_CHECK_ALIGN> class_type

The current instantiation of the type.

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Constructor & Destructor Documentation

union_caster	(	from_type const	from,
		bool	bCheckAlign = B_CHECK_ALIGN
	)			[inline, explicit]

Conversion constructor.

or a change of type, but not both.

References ss_typename_type_k, STLSOFT_MESSAGE_ASSERT, STLSOFT_STATIC_ASSERT, and STLSOFT_SUPPRESS_UNUSED.

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Member Function Documentation

operator to_type

(

)

const [inline]

Implicit conversion operator.

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The documentation for this union was generated from the following file:

• stlsoft/conversion/union_cast.hpp