zypp::base::Flags< TEnum > Class Template Reference

A type-safe way of storing OR-combinations of enum values (like QTs QFlags). More...

#include <zypp-core/base/Flags.h>

Public Types
using	Enum = TEnum
	The underlying enum type. More...
using	Integral = std::underlying_type_t< Enum >
	The underlying integral type. More...

Public Member Functions
constexpr	Flags ()
constexpr	Flags (Enum flag_r)
constexpr	Flags (Integral flag_r)
constexpr bool	isNone () const
constexpr bool	isAll () const
Flags &	operator &= (Flags rhs)
Flags &	operator &= (Enum rhs)
Flags &	operator|= (Flags rhs)
Flags &	operator|= (Enum rhs)
Flags &	operator^= (Flags rhs)
Flags &	operator^= (Enum rhs)
constexpr	operator Integral () const
constexpr Flags	operator & (Flags rhs) const
constexpr Flags	operator & (Enum rhs) const
constexpr Flags	operator| (Flags rhs) const
constexpr Flags	operator| (Enum rhs) const
constexpr Flags	operator^ (Flags rhs) const
constexpr Flags	operator^ (Enum rhs) const
constexpr Flags	operator~ () const
constexpr bool	operator== (Enum rhs) const
constexpr bool	operator!= (Enum rhs) const
Flags &	setFlag (Flags flag_r, bool newval_r)
Flags &	setFlag (Enum flag_r, bool newval_r)
Flags &	setFlag (Flags flag_r)
Flags &	setFlag (Enum flag_r)
Flags &	unsetFlag (Flags flag_r)
Flags &	unsetFlag (Enum flag_r)
constexpr bool	testFlag (Flags flag_r) const
constexpr bool	testFlag (Enum flag_r) const

Static Public Member Functions
static constexpr Flags	none ()
static constexpr Flags	all ()

Private Member Functions
constexpr bool	testFlag (Integral flag) const

Static Private Member Functions
static constexpr Integral	integral (Flags obj)
static constexpr Integral	integral (Enum obj)

Private Attributes
Integral	_val

Related Functions
(Note that these are not member functions.)
template<typename Enum >
std::string	stringify (const Flags< Enum > &flag_r, const std::initializer_list< std::pair< Flags< Enum >, std::string > > &flaglist_r={}, std::string intro_r="[", std::string sep_r="|", const std::string &extro_r="]")

Detailed Description

template<typename TEnum>
class zypp::base::Flags< TEnum >

A type-safe way of storing OR-combinations of enum values (like QTs QFlags).

See also

QFlags Class Reference

class RpmDb
{
  public:
    enum DbStateInfoBits {
      DbSI_NO_INIT     = 0x0000,
      DbSI_HAVE_V4     = 0x0001,
      DbSI_MADE_V4     = 0x0002,
      DbSI_MODIFIED_V4 = 0x0004,
      DbSI_HAVE_V3     = 0x0008,
      DbSI_HAVE_V3TOV4 = 0x0010,
      DbSI_MADE_V3TOV4 = 0x0020
    };

    ZYPP_DECLARE_FLAGS(DbStateInfo,DbStateInfoBits);
};
ZYPP_DECLARE_OPERATORS_FOR_FLAGS(RpmDb::DbStateInfo);

...
enum Other { OTHERVAL = 13 };
{
  XRpmDb::DbStateInfo s;
  s = XRpmDb::DbSI_MODIFIED_V4|XRpmDb::DbSI_HAVE_V4;
  // s |= OTHERVAL; // As desired: it does not compile
}

Definition at line 58 of file Flags.h.

Member Typedef Documentation

Enum

template<typename TEnum>

using zypp::base::Flags< TEnum >::Enum = TEnum

The underlying enum type.

Definition at line 61 of file Flags.h.

Integral

template<typename TEnum>

using zypp::base::Flags< TEnum >::Integral = std::underlying_type_t<Enum>

The underlying integral type.

Definition at line 62 of file Flags.h.

Constructor & Destructor Documentation

Flags() [1/3]

template<typename TEnum>

constexpr zypp::base::Flags< TEnum >::Flags ( )

inline

Definition at line 65 of file Flags.h.

Flags() [2/3]

template<typename TEnum>

constexpr zypp::base::Flags< TEnum >::Flags ( Enum  flag_r )

inline

Definition at line 66 of file Flags.h.

Flags() [3/3]

template<typename TEnum>

constexpr zypp::base::Flags< TEnum >::Flags ( Integral  flag_r )

inlineexplicit

Definition at line 67 of file Flags.h.

Member Function Documentation

none()

template<typename TEnum>

static constexpr Flags zypp::base::Flags< TEnum >::none ( )

inlinestatic

Definition at line 69 of file Flags.h.

all()

template<typename TEnum>

static constexpr Flags zypp::base::Flags< TEnum >::all ( )

inlinestatic

Definition at line 70 of file Flags.h.

isNone()

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::isNone ( ) const

inline

Definition at line 72 of file Flags.h.

isAll()

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::isAll ( ) const

inline

Definition at line 73 of file Flags.h.

operator &=() [1/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::operator&= ( Flags< TEnum >  rhs )

inline

Definition at line 75 of file Flags.h.

operator &=() [2/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::operator&= ( Enum  rhs )

inline

Definition at line 76 of file Flags.h.

operator|=() [1/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::operator|= ( Flags< TEnum >  rhs )

inline

Definition at line 78 of file Flags.h.

operator|=() [2/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::operator|= ( Enum  rhs )

inline

Definition at line 79 of file Flags.h.

operator^=() [1/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::operator^= ( Flags< TEnum >  rhs )

inline

Definition at line 81 of file Flags.h.

operator^=() [2/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::operator^= ( Enum  rhs )

inline

Definition at line 82 of file Flags.h.

operator Integral()

template<typename TEnum>

constexpr zypp::base::Flags< TEnum >::operator Integral ( ) const

inline

Definition at line 85 of file Flags.h.

operator &() [1/2]

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator& ( Flags< TEnum >  rhs ) const

inline

Definition at line 87 of file Flags.h.

operator &() [2/2]

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator& ( Enum  rhs ) const

inline

Definition at line 88 of file Flags.h.

operator|() [1/2]

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator| ( Flags< TEnum >  rhs ) const

inline

Definition at line 90 of file Flags.h.

operator|() [2/2]

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator| ( Enum  rhs ) const

inline

Definition at line 91 of file Flags.h.

operator^() [1/2]

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator^ ( Flags< TEnum >  rhs ) const

inline

Definition at line 93 of file Flags.h.

operator^() [2/2]

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator^ ( Enum  rhs ) const

inline

Definition at line 94 of file Flags.h.

operator~()

template<typename TEnum>

constexpr Flags zypp::base::Flags< TEnum >::operator~ ( ) const

inline

Definition at line 96 of file Flags.h.

operator==()

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::operator== ( Enum  rhs ) const

inline

Definition at line 98 of file Flags.h.

operator!=()

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::operator!= ( Enum  rhs ) const

inline

Definition at line 99 of file Flags.h.

setFlag() [1/4]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::setFlag ( Flags< TEnum >  flag_r, bool  newval_r  )

inline

Definition at line 102 of file Flags.h.

setFlag() [2/4]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::setFlag ( Enum  flag_r, bool  newval_r  )

inline

Definition at line 103 of file Flags.h.

setFlag() [3/4]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::setFlag ( Flags< TEnum >  flag_r )

inline

Definition at line 105 of file Flags.h.

setFlag() [4/4]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::setFlag ( Enum  flag_r )

inline

Definition at line 106 of file Flags.h.

unsetFlag() [1/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::unsetFlag ( Flags< TEnum >  flag_r )

inline

Definition at line 108 of file Flags.h.

unsetFlag() [2/2]

template<typename TEnum>

Flags& zypp::base::Flags< TEnum >::unsetFlag ( Enum  flag_r )

inline

Definition at line 109 of file Flags.h.

testFlag() [1/3]

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::testFlag ( Flags< TEnum >  flag_r ) const

inline

Definition at line 111 of file Flags.h.

testFlag() [2/3]

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::testFlag ( Enum  flag_r ) const

inline

Definition at line 112 of file Flags.h.

testFlag() [3/3]

template<typename TEnum>

constexpr bool zypp::base::Flags< TEnum >::testFlag ( Integral  flag ) const

inlineprivate

Definition at line 115 of file Flags.h.

integral() [1/2]

template<typename TEnum>

static constexpr Integral zypp::base::Flags< TEnum >::integral ( Flags< TEnum >  obj )

inlinestaticprivate

Definition at line 117 of file Flags.h.

integral() [2/2]

template<typename TEnum>

static constexpr Integral zypp::base::Flags< TEnum >::integral ( Enum  obj )

inlinestaticprivate

Definition at line 118 of file Flags.h.

Friends And Related Function Documentation

stringify()

template<typename Enum >

std::string stringify ( const Flags< Enum > &  flag_r, const std::initializer_list< std::pair< Flags< Enum >, std::string > > &  flaglist_r = {}, std::string  intro_r = "[", std::string  sep_r = "|", const std::string &  extro_r = "]"  )

related

Stringify Build a string of OR'ed names of each flag value set in flag_r. Remaining bits in flag_r are added as hexstring.

       enum E { a=1, b=2, c=4 };
ZYPP_DECLARE_FLAGS( E, MyFlags );

MyFlags f = a|b|c;
cout << f << " = " << stringify( f, { {a,"A"}, {b,"B"} } ) << endl;
// prints: 0x0007 = [A|B|0x4]

Definition at line 137 of file Flags.h.

Member Data Documentation

_val

template<typename TEnum>

Integral zypp::base::Flags< TEnum >::_val

private

Definition at line 120 of file Flags.h.

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

• zypp-core/base/Flags.h