std::system_category

 

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Utilities-Bibliothek

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Fehlerbehandlung

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initializer_list (C++11)

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rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

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Swap, forward und move

swap

forward (C++11)

move (C++11)

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declval (C++11)

 

Fehlerbehandlung

Exception Handling Original: Exception handling The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

exception

uncaught_exception

exception_ptr (C++11)

make_exception_ptr (C++11)

current_exception (C++11)

rethrow_exception (C++11)

nested_exception (C++11)

throw_with_nested (C++11)

rethrow_if_nested (C++11)

Ausnahmebehandlung Ausfälle Original: Exception handling failures The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

terminate

terminate_handler

get_terminate (C++11)

set_terminate

unexpected (veraltet)

bad_exception

unexpected_handler (veraltet)

get_unexpected (C++11)(veraltet)

set_unexpected (veraltet)

Exception Kategorien Original: Exception categories The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

logic_error

invalid_argument

domain_error

length_error

out_of_range

runtime_error

range_error

overflow_error

underflow_error

Fehlercodes Original: Error codes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Fehlercodes

errno

Assertions Original: Assertions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

assert

system_error Anlage Original: system_error facility The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

error_category (C++11)

generic_category (C++11)

system_category (C++11)

error_condition (C++11)

errc (C++11)

error_code (C++11)

system_error (C++11)

 

definiert in Header <system_error>
conststd::error_category& system_category();		(seit C++11)

Erhält einen Hinweis auf die statische Fehlerkategorie Objekt für Fehler, die durch das Betriebssystem gemeldet. Das Objekt ist erforderlich, um die virtuelle Funktion error_category::name() überschreiben, um einen Zeiger auf den String "system" zurückzukehren. Es ist auch erforderlich, um die virtuelle Funktion error_category::default_error_condition() überschreiben, um die Fehlercodes zuordnen, Spiel POSIX errno Werte std::generic_category .

Original:

Obtains a reference to the static error category object for errors reported by the operating system. The object is required to override the virtual function error_category::name() to return a pointer to the string "system". It is also required to override the virtual function error_category::default_error_condition() to map the error codes that match POSIX errno values to std::generic_category.

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Parameter

(None)

Original:

(none)

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Rückgabewert

Ein Verweis auf den statischen Objekt unbestimmter Laufzeit-Typ, von std::error_category abgeleitet .

Original:

A reference to the static object of unspecified runtime type, derived from std::error_category.

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Ausnahmen

noexcept specification:  

noexcept

  (seit C++11)

Beispiel

#include <iostream>#include <system_error>#include <iomanip>#include <string>   int main(){std::error_condition econd = std::system_category().default_error_condition(EDOM);std::cout<<"Category: "<< econd.category().name()<<'\n'<<"Value: "<< econd.value()<<'\n'<<"Message: "<< econd.message()<<'\n';   econd = std::system_category().default_error_condition(10001);std::cout<<"Category: "<< econd.category().name()<<'\n'<<"Value: "<< econd.value()<<'\n'<<"Message: "<< econd.message()<<'\n';}

Output:

Category: generic Value: 33 Message: Numerical argument out of domain Category: system Value: 10001 Message: Unknown error 10001

Siehe auch

generic_category (C++11)	identifiziert die generische Fehler Kategorie Original: identifies the generic error category The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktion)
errc (C++11)	Die std::error_condition Aufzählung listet alle gängigen <cerrno> Makro-Konstanten Original: the std::error_condition enumeration listing all standard <cerrno> macro constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Klasse)