UnrealTypeTraits.h File Reference

#include "CoreTypes.h"
#include "Templates/IsPointer.h"
#include "Misc/AssertionMacros.h"
#include "Templates/AndOrNot.h"
#include "Templates/EnableIf.h"
#include "Templates/IsArithmetic.h"
#include "Templates/IsEnum.h"
#include "Templates/RemoveCV.h"
#include "Templates/Models.h"
#include "Templates/IsPODType.h"
#include "Templates/IsUECoreType.h"
#include "Templates/IsTriviallyCopyConstructible.h"

Include dependency graph for UnrealTypeTraits.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	TIsDerivedFrom< DerivedType, BaseType >
struct	TNthTypeFromParameterPack< N, T, OtherTypes... >
struct	TNthTypeFromParameterPack< 0, T, OtherTypes... >
struct	TFormatSpecifier< T >
struct	TIsReferenceType< T >
struct	TIsReferenceType< T & >
struct	TIsReferenceType< T && >
struct	TIsLValueReferenceType< T >
struct	TIsLValueReferenceType< T & >
struct	TIsRValueReferenceType< T >
struct	TIsRValueReferenceType< T && >
struct	TIsFundamentalType< T >
struct	TIsFunction< T >
struct	TIsFunction< RetType(Params...)>
struct	TIsZeroConstructType< T >
struct	TIsWeakPointerType< T >
struct	TNameOf< T >
struct	TCallTraitsParamTypeHelper
struct	TCallTraitsParamTypeHelper< T, true >
struct	TCallTraitsParamTypeHelper< T *, true >
struct	TRemoveConst< T >
struct	TRemoveConst< const T >
struct	TCallTraitsBase< T >
struct	TCallTraits< T >
struct	TCallTraits< T & >
struct	TCallTraits< T[N]>
struct	TCallTraits< const T[N]>
struct	TTypeTraitsBase< T >
struct	TTypeTraits< T >
struct	FVirtualDestructor
struct	TMoveSupportTraitsBase< T, U >
struct	TMoveSupportTraitsBase< T, const T & >
struct	TMoveSupportTraits< T >
struct	TIsBitwiseConstructible< T, Arg >
struct	TIsBitwiseConstructible< T, T >
struct	TIsBitwiseConstructible< const T, U >
struct	TIsBitwiseConstructible< const T *, T * >
struct	TIsBitwiseConstructible< uint8, int8 >
struct	TIsBitwiseConstructible< int8, uint8 >
struct	TIsBitwiseConstructible< uint16, int16 >
struct	TIsBitwiseConstructible< int16, uint16 >
struct	TIsBitwiseConstructible< uint32, int32 >
struct	TIsBitwiseConstructible< int32, uint32 >
struct	TIsBitwiseConstructible< uint64, int64 >
struct	TIsBitwiseConstructible< int64, uint64 >

Macros
#define	UE_CONSTRAINTS_BEGIN   , std::enable_if_t<
#define	UE_CONSTRAINT(...)   (__VA_ARGS__) &&
#define	UE_CONSTRAINTS_END   true, int> = 0
#define	TEMPLATE_REQUIRES(...)   typename TEnableIf<__VA_ARGS__, int>::type = 0
#define	HAS_TRIVIAL_CONSTRUCTOR(T)   __has_trivial_constructor(T)
#define	IS_POD(T)   __is_pod(T)
#define	IS_EMPTY(T)   __is_empty(T)
#define	Expose_TFormatSpecifier(type, format)
#define	Expose_TNameOf(type)
#define	GENERATE_MEMBER_FUNCTION_CHECK(MemberName, Result, ConstModifier, ...)

Functions
template<typename A , typename B >
struct	UE_DEPRECATED (5.2, "TIsSame has been deprecated, please use std::is_same instead.") TIsSame
	Expose_TFormatSpecifier (bool, "%i") Expose_TFormatSpecifier(uint8
u	Expose_TFormatSpecifier (uint16, "%u") Expose_TFormatSpecifier(uint32
u u	Expose_TFormatSpecifier (uint64, "%llu") Expose_TFormatSpecifier(int8
u u d	Expose_TFormatSpecifier (int16, "%d") Expose_TFormatSpecifier(int32
u u d d	Expose_TFormatSpecifier (int64, "%lld") Expose_TFormatSpecifier(float
u u d d f	Expose_TFormatSpecifier (double, "%f") Expose_TFormatSpecifier(long double
u u d d f f	Expose_TFormatSpecifier (long, "%ld") Expose_TFormatSpecifier(unsigned long
	Expose_TNameOf (uint8) Expose_TNameOf(uint16) Expose_TNameOf(uint32) Expose_TNameOf(uint64) Expose_TNameOf(int8) Expose_TNameOf(int16) Expose_TNameOf(int32) Expose_TNameOf(int64) Expose_TNameOf(float) Expose_TNameOf(double) template< typename T

Macro Definition Documentation

Expose_TFormatSpecifier

#define Expose_TFormatSpecifier	(		type,
			format )

Value:

template<> \
struct TFormatSpecifier<type> \
{  \
    FORCEINLINE static decltype(auto) GetFormatSpecifier() \
    { \
        return TEXT(format); \
    } \
};

Definition at line 139 of file UnrealTypeTraits.h.

Expose_TNameOf

#define Expose_TNameOf

(

type

)

Value:

template<> \
struct TNameOf<type> \
{  \
    FORCEINLINE static TCHAR const* GetName() \
    { \
        return TEXT(#type); \
    } \
};

Definition at line 242 of file UnrealTypeTraits.h.

GENERATE_MEMBER_FUNCTION_CHECK

#define GENERATE_MEMBER_FUNCTION_CHECK	(		MemberName,
			Result,
			ConstModifier,
			... )

Value:

template <typename T>                                                                                           \
class THasMemberFunction_##MemberName                                                                           \
{                                                                                                               \
    template <typename U, Result(U::*)(__VA_ARGS__) ConstModifier> struct Check;                                \
    template <typename U> static char MemberTest(Check<U, &U::MemberName> *);                                   \
    template <typename U> static int MemberTest(...);                                                           \
public:                                                                                                         \
    enum { Value = sizeof(MemberTest<T>(nullptr)) == sizeof(char) };                                            \
};

Definition at line 520 of file UnrealTypeTraits.h.

HAS_TRIVIAL_CONSTRUCTOR

#define HAS_TRIVIAL_CONSTRUCTOR

(

T

)

__has_trivial_constructor(T)

Definition at line 61 of file UnrealTypeTraits.h.

IS_EMPTY

#define IS_EMPTY

(

T

)

__is_empty(T)

Definition at line 63 of file UnrealTypeTraits.h.

IS_POD

#define IS_POD

(

T

)

__is_pod(T)

Definition at line 62 of file UnrealTypeTraits.h.

TEMPLATE_REQUIRES

#define TEMPLATE_REQUIRES

(

...

)

typename TEnableIf<__VA_ARGS__, int>::type = 0

Definition at line 56 of file UnrealTypeTraits.h.

UE_CONSTRAINT

#define UE_CONSTRAINT

(

...

)

(__VA_ARGS__) &&

Definition at line 41 of file UnrealTypeTraits.h.

UE_CONSTRAINTS_BEGIN

#define UE_CONSTRAINTS_BEGIN   , std::enable_if_t<

Definition at line 40 of file UnrealTypeTraits.h.

UE_CONSTRAINTS_END

#define UE_CONSTRAINTS_END   true, int> = 0

Definition at line 42 of file UnrealTypeTraits.h.

Function Documentation

Expose_TFormatSpecifier() [1/7]

Expose_TFormatSpecifier	(	bool	,
		"%i"	)

Expose_TFormatSpecifier() [2/7]

u u d d f Expose_TFormatSpecifier	(	double	,
		"%f"	)

Expose_TFormatSpecifier() [3/7]

u u d Expose_TFormatSpecifier	(	int16	,
		"%d"	)

Expose_TFormatSpecifier() [4/7]

u u d d Expose_TFormatSpecifier	(	int64	,
		"%lld"	)

Expose_TFormatSpecifier() [5/7]

u u d d f f Expose_TFormatSpecifier	(	long	,
		"%ld"	)

Expose_TFormatSpecifier() [6/7]

u Expose_TFormatSpecifier	(	uint16	,
		"%u"	)

Expose_TFormatSpecifier() [7/7]

u u Expose_TFormatSpecifier	(	uint64	,
		"%llu"	)

Expose_TNameOf()

Expose_TNameOf

(

uint8

)

Call traits helpers

UE_DEPRECATED()

template<typename A , typename B >

struct UE_DEPRECATED	(	5.	2,
		"TIsSame has been	deprecated,
		please use std::is_same instead."	)

TIsSame

Unreal implementation of std::is_same trait.

Definition at line 1 of file UnrealTypeTraits.h.