gtpin::Validatable< T, INV, UniqueType > Struct Template Reference

Wrapper of type 'T' with a distinct value 'INV' which is considered as invalid. More...

#include <gt_basic_defs.h>

Public Member Functions
constexpr	Validatable ()
	Default constructor (of invalid value)
constexpr	Validatable (const T &v)
	Conversion constructor.
constexpr	operator T () const
	Conversion operator.
constexpr bool	IsValid () const
	Return true, if value is valid.
constexpr bool	IsInvalid () const
	Return true, if value is invalid.
Static Public Member Functions
static constexpr T	Invalid ()
	Return invalid value.

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Detailed Description

template<typename T, T INV, typename UniqueType = void>
struct gtpin::Validatable< T, INV, UniqueType >

Wrapper of type 'T' with a distinct value 'INV' which is considered as invalid.

The 'UniqueType' argument can be used to create unique types out of this template, e.g. Validatable<uint32_t, 0, struct A> and Validatable<uint32_t, 0, struct B>.