libzypp 17.38.6
zyppng::Arch Class Reference

Architecture. More...

#include <zypp/Arch.h>

Classes

struct  CompatEntry
 Holds an architecture ID and its compatible relation. More...

Public Member Functions

 Arch ()
 Default ctor Arc_noarch.
 Arch (IdString::IdType id_r)
 Ctor taking Arch as string.
 Arch (const IdString &idstr_r)
 Arch (const std::string &str_r)
 Arch (const char *cstr_r)

Static Public Member Functions

static Arch detectSystemArchitecture ()
 Determine system architecture evaluating uname and /proc/cpuinfo.

IdStringType like interface.

We can't use the complete IdStringType mixin until _doCompare can be redefined on any level, not just as char*.

using CompatSet = std::set<Arch, CompareByGT<Arch>>
 Reversed arch order, best Arch first.
const CompatEntry * _entry
IdString idStr () const
 String representation of Arch.
const std::string & asString () const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
const char * c_str () const
 This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
bool empty () const
 Test for an empty Arch (this is Arch_epmty, not Arch_noarch ).
unsigned size () const
 Size of the string representation.
IdString::IdType id () const
 Expert backdoor.
bool isBuiltIn () const
 Whether this is a buitin (or known) architecture.
bool compatibleWith (const Arch &targetArch_r) const
 Compatibility relation.
Arch baseArch () const
int compare (const Arch &rhs) const
 Arch comparison.
 Arch (const CompatEntry &)
static std::string asString (const CompatSet &cset)
static Arch baseArch (const Arch &targetArch_r)
static int compare (const Arch &lhs, const Arch &rhs)
 Arch comparison (static version).
static CompatSet compatSet (const Arch &targetArch_r)
 Return a set of all Arch's compatibleWith a targetArch_r.

Detailed Description

Architecture.

Definition at line 36 of file Arch.h.

Member Typedef Documentation

◆ CompatSet

using zypp::Arch::CompatSet = std::set<Arch, CompareByGT<Arch>>

Reversed arch order, best Arch first.

Definition at line 122 of file Arch.h.

Constructor & Destructor Documentation

◆ Arch() [1/6]

zypp::Arch::Arch ( )

Default ctor Arc_noarch.

Definition at line 681 of file Arch.cc.

◆ Arch() [2/6]

zypp::Arch::Arch ( IdString::IdType id_r)
explicit

Ctor taking Arch as string.

Definition at line 685 of file Arch.cc.

◆ Arch() [3/6]

zypp::Arch::Arch ( const IdString & idstr_r)
explicit

Definition at line 689 of file Arch.cc.

◆ Arch() [4/6]

zypp::Arch::Arch ( const std::string & str_r)
explicit

Definition at line 693 of file Arch.cc.

◆ Arch() [5/6]

zypp::Arch::Arch ( const char * cstr_r)
explicit

Definition at line 697 of file Arch.cc.

◆ Arch() [6/6]

zypp::Arch::Arch ( const CompatEntry & rhs)
private

Definition at line 707 of file Arch.cc.

Member Function Documentation

◆ detectSystemArchitecture()

Arch zypp::Arch::detectSystemArchitecture ( )
static

Determine system architecture evaluating uname and /proc/cpuinfo.

Definition at line 701 of file Arch.cc.

◆ idStr()

IdString zypp::Arch::idStr ( ) const

String representation of Arch.

Definition at line 716 of file Arch.cc.

◆ asString() [1/2]

const std::string & zypp::Arch::asString ( ) const

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 724 of file Arch.cc.

◆ asString() [2/2]

std::string zypp::Arch::asString ( const CompatSet & cset)
inlinestatic

Definition at line 140 of file Arch.h.

◆ c_str()

const char * zypp::Arch::c_str ( ) const
inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 64 of file Arch.h.

◆ empty()

bool zypp::Arch::empty ( ) const
inline

Test for an empty Arch (this is Arch_epmty, not Arch_noarch ).

Definition at line 68 of file Arch.h.

◆ size()

unsigned zypp::Arch::size ( ) const
inline

Size of the string representation.

Definition at line 72 of file Arch.h.

◆ id()

IdString::IdType zypp::Arch::id ( ) const
inline

Expert backdoor.

Definition at line 76 of file Arch.h.

◆ isBuiltIn()

bool zypp::Arch::isBuiltIn ( ) const

Whether this is a buitin (or known) architecture.

Used e.g. in Capability to determine whether some trailing ".string" is part ot the name or restriction to an architecture.

Definition at line 732 of file Arch.cc.

◆ compatibleWith()

bool zypp::Arch::compatibleWith ( const Arch & targetArch_r) const

Compatibility relation.

Returns
True iff this is compatible with targetArch_r.
Arch_noarch.compatibleWith( ... ) ==> always true;
Arch_i686.compatibleWith( Arch_x86_64 ) ==> true;
Arch_x86_64.compatibleWith( Arch_i686 ) ==> false;

Definition at line 740 of file Arch.cc.

◆ baseArch() [1/2]

Arch zypp::Arch::baseArch ( ) const
Returns
the arch before noarch if it's not a multilib arch (e.g. x86_64,sparc64v,sparc64,ppc64,s390x).

Definition at line 748 of file Arch.cc.

◆ baseArch() [2/2]

Arch zypp::Arch::baseArch ( const Arch & targetArch_r)
inlinestatic

Definition at line 106 of file Arch.h.

◆ compare() [1/2]

int zypp::Arch::compare ( const Arch & rhs) const

Arch comparison.

Compatible architectures are treated as less (i.e. i686>i386>noarch). So Arch_noarch is the least Arch. Equivalent architectures (compatible in both directions) are ordered arbitrary.

Definition at line 785 of file Arch.cc.

◆ compare() [2/2]

int zypp::Arch::compare ( const Arch & lhs,
const Arch & rhs )
inlinestatic

Arch comparison (static version).

Definition at line 117 of file Arch.h.

◆ compatSet()

Arch::CompatSet zypp::Arch::compatSet ( const Arch & targetArch_r)
static

Return a set of all Arch's compatibleWith a targetArch_r.

Note
The set is ordered according to compare, thus iterating will start at targetArch_r and end with Arch_noarch.
Arch::CompatSet cset( Arch::compatSet( Arch_x86_64 ) );
cout << str::join( make_transform_iterator( cset.begin(), std::mem_fn(&Arch::asString) ),
make_transform_iterator( cset.end(), std::mem_fn(&Arch::asString) ) )
<< endl;
// Prints: x86_64 athlon i686 i586 i486 i386 noarch
zyppng::Arch::compatSet
static CompatSet compatSet(const Arch &targetArch_r)
Return a set of all Arch's compatibleWith a targetArch_r.
Definition Arch.cc:793
zyppng::Arch::asString
const std::string & asString() const
This is an overloaded member function, provided for convenience. It differs from the above function o...
Definition Arch.cc:724
zyppng::Arch::CompatSet
std::set< Arch, CompareByGT< Arch > > CompatSet
Reversed arch order, best Arch first.
Definition Arch.h:122
zypp::str::join
std::string join(TIterator begin, TIterator end, const C_Str &sep_r=" ")
Join strings using separator sep_r (defaults to BLANK).
Definition String.h:846

Definition at line 793 of file Arch.cc.

Member Data Documentation

◆ _entry

const CompatEntry* zypp::Arch::_entry
private

Definition at line 153 of file Arch.h.

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