deaddev::details Namespace Reference

some utility structures and functions More...

Classes
struct	bitmask_operations_check_traits
	trait implementation More...
struct	bitmask_traits
	used for deaddev::details::is_bitmask_v<T> and deaddev::details::bitmask_all_flags_v<T> More...
struct	empty_bitmask_traits
	default value More...

Functions
template<typename T >
DEADDEV_CONSTEVAL auto	combine_flags (::std::underlying_type_t< T > &result, T value) -> void
	Flag combination routine.
template<typename T >
DEADDEV_CONSTEVAL auto	calculate_all_flags_cpp_before_17 (T val) -> T
	sentinel recursion overload for all flags calculation
template<typename T , typename... Args>
DEADDEV_CONSTEVAL auto	calculate_all_flags_cpp_before_17 (T arg, Args... args) -> T
	C++14 implementation for calculate_all_flags.
template<typename T , typename... Args>
DEADDEV_CONSTEVAL auto	calculate_all_flags (Args... args) -> T
	Combines flags.
template<typename T >
DEADDEV_CONSTEVAL auto	calculate_all_flags () -> T
	returns all flags
auto	adl_bitmask_operations_check (...) -> ::deaddev::details::empty_bitmask_traits
	noop

Variables
template<typename T >
constexpr bool	is_scoped_enum_v
	c++14 compatible std::is_scoped_enum
template<typename T , typename = typename ::std::enable_if<::std::is_enum<T>::value>::type>
constexpr bool	is_bitmask_v
	Is T a bitmask type.
template<typename T , typename = typename ::std::enable_if<::std::is_enum<T>::value>::type>
constexpr T	bitmask_all_flags_v
	All flags combined.

Detailed Description

some utility structures and functions

Function Documentation

adl_bitmask_operations_check()

auto deaddev::details::adl_bitmask_operations_check

(

...

)

-> ::deaddev::details::empty_bitmask_traits

noop

This function does nothing but it's used to get bitmask traits type using argument-dependent lookup (ADL)

Parameters

...	placeholder for ADL

Returns

deaddev::details::empty_bitmask_traits default traits

calculate_all_flags() [1/2]

template<typename T >

DEADDEV_CONSTEVAL auto deaddev::details::calculate_all_flags

(

)

-> T

returns all flags

there's no all flags specified then library will use (T)-1

Template Parameters

T	bitmask type

Returns

T value with all bits are set to 1

calculate_all_flags() [2/2]

template<typename T , typename... Args>

DEADDEV_CONSTEVAL auto deaddev::details::calculate_all_flags

(

Args...

args

)

-> T

Combines flags.

Uses folding expressions to easily combine all flags using binary or operator

Template Parameters

T	enum type
Args	enum types or integers

Parameters

args	all flags list

Returns

T all flags combination

calculate_all_flags_cpp_before_17() [1/2]

template<typename T , typename... Args>

DEADDEV_CONSTEVAL auto deaddev::details::calculate_all_flags_cpp_before_17	(	T	arg,
		Args...	args ) -> T

C++14 implementation for calculate_all_flags.

Template Parameters

T	enum type
Args	enum values

Parameters

arg	first enum value
args	rest of values

Returns

T combined valuees

calculate_all_flags_cpp_before_17() [2/2]

template<typename T >

DEADDEV_CONSTEVAL auto deaddev::details::calculate_all_flags_cpp_before_17

(

T

val

)

-> T

sentinel recursion overload for all flags calculation

Template Parameters

T

enum type

Parameters

val

value

Returns

T value

combine_flags()

template<typename T >

DEADDEV_CONSTEVAL auto deaddev::details::combine_flags	(	::std::underlying_type_t< T > &	result,
		T	value ) -> void

Flag combination routine.

Template Parameters

T

flag type

Parameters

result
value

Variable Documentation

bitmask_all_flags_v

template<typename T , typename = typename ::std::enable_if<::std::is_enum<T>::value>::type>

T deaddev::details::bitmask_all_flags_v

constexpr

Initial value:

=
    ::deaddev::details::bitmask_operations_check_traits<T>::all_flags

All flags combined.

All flags combination for better negation

Template Parameters

T	enum type
typename	SFINAE

is_bitmask_v

template<typename T , typename = typename ::std::enable_if<::std::is_enum<T>::value>::type>

bool deaddev::details::is_bitmask_v

constexpr

Initial value:

=
 
 
 
    ::deaddev::details::bitmask_operations_check_traits<T>::enable

Is T a bitmask type.

Check if the bitmask operations are enabled for T

Template Parameters

T	enum type
typename	SFINAE

is_scoped_enum_v

template<typename T >

bool deaddev::details::is_scoped_enum_v

constexpr

Initial value:

=
    ::std::is_enum<T>::value &&
    !::std::is_convertible<T, typename ::std::underlying_type<T>::type>::value

c++14 compatible std::is_scoped_enum

Template Parameters

T

enum type