CoreComponents 4.0.0
A Modern C++ Toolkit
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GroupInfo Class Referencefinal

Query information about system groups. More...

#include <cc/GroupInfo>

Inheritance diagram for GroupInfo:

Public Member Functions

 GroupInfo ()=default
 Create null group info.
 GroupInfo (gid_t id)
 Lookup group information by group ID.
 GroupInfo (const String &name)
 Lookup group information by group name.
int id () const
 Group ID.
String name () const
 Group name.
Set< Stringmembers () const
 Get login names of the members of this group (excluding the group owner).
bool checkMembership (const UserInfo &user) const
 Check group membership for user.
Public Member Functions inherited from Object
 Object ()=default
 Create a null object.
 operator bool () const
 Check if this is a non-null object.
bool isNull () const
 Check if this is a null object.
int useCount () const
 Reference count.
template<class T>
bool is () const
 Check if this object is of type T.
template<class T>
as () const
 Cast this object to type T.
bool isWeak () const
 Check if the underlying object reference is weak.
bool operator== (const Object &other) const
 Equality operator.
std::strong_ordering operator<=> (const Object &other) const
 Ordering operator.

Additional Inherited Members

Public Types inherited from Object
using NullAccess = cc::NullAccess
 Error thrown when trying to access a null object.
using VirginityTestFailed = cc::VirginityTestFailed
 Error thrown when trying to initialize an object with a non-virgin state.
Protected Member Functions inherited from Object
template<class T>
weak () const
template<class T>
void initOnce ()
 Create the object state when called the first time.
template<class T>
void initOncePerThread ()
 Create a distinct object state for each thread when called the first time in that thread.
 Object (State *newState)
 Initialize object with newState.
 Object (State *state, Alias)
 Object (State *state, Weak)
Objectoperator= (std::nullptr_t)
Static Protected Member Functions inherited from Object
template<class T>
static T alias (const State *state)
 Create an alias object for the given state.
template<class T>
static T weak (const State *state)
Protected Attributes inherited from Object
Handle< Stateme
 Internal object state

Detailed Description

Query information about system groups.

Constructor & Destructor Documentation

◆ GroupInfo() [1/3]

GroupInfo ( )
default

Create null group info.

◆ GroupInfo() [2/3]

GroupInfo ( gid_t id)
explicit

Lookup group information by group ID.

Parameters
idSystem group ID

◆ GroupInfo() [3/3]

GroupInfo ( const String & name)
explicit

Lookup group information by group name.

Parameters
nameGroupInfo name

Member Function Documentation

◆ id()

int id ( ) const

Group ID.

◆ name()

String name ( ) const

Group name.

◆ members()

Set< String > members ( ) const

Get login names of the members of this group (excluding the group owner).

◆ checkMembership()

bool checkMembership ( const UserInfo & user) const

Check group membership for user.