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    std::system_error::system_error

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    <metanoindex/>

     
    C++
     
    Utilities-Bibliothek
     
    Fehlerbehandlung
    Exception Handling
    Original:
    Exception handling
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    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
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    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
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    logic_error
    invalid_argument
    domain_error
    length_error
    out_of_range
    runtime_error
    range_error
    overflow_error
    underflow_error
    Fehlercodes
    Original:
    Error codes
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    Fehlercodes
    errno
    Assertions
    Original:
    Assertions
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    assert
    system_error Anlage
    Original:
    system_error facility
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    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)
     
    std::system_error
    Member-Funktionen
    Original:
    Member functions
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    system_error::system_error
    system_error::code
    system_error::what
     
    <tbody> </tbody>
    system_error( std::error_code ec );
    		 (1) (seit C++11)
    system_error( std::error_code ec, const std::string& what_arg );
    		 (2) (seit C++11)
    system_error( std::error_code ec, const char* what_arg );
    		 (2) (seit C++11)
    system_error( int ev, const std::error_category& ecat
    		 (3) (seit C++11)
    system_error( int ev, const std::error_category& ecat, const std::string& what_arg);
    		 (4) (seit C++11)
    system_error( int ev, const std::error_category& ecat, const char* what_arg);
    		 (4) (seit C++11)
    Erzeugt neue System Error-Objekt .
    Original:
    Constructs new system error object.
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    1)
    Konstrukte mit Fehlercode ec
    Original:
    Constructs with error code ec
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    2)
    Konstrukte mit Fehlercode ec und Erklärung String what_arg. Der String zurückgegeben wird what() garantiert what_arg enthalten .
    Original:
    Constructs with error code ec and explanation string what_arg. The string returned by what() is guaranteed to contain what_arg.
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    3)
    Konstrukte mit zugrunde liegende Fehlercode ev und die damit verbundenen Fehler Kategorie ecat .
    Original:
    Constructs with underlying error code ev and associated error category ecat.
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    4)
    Konstrukte mit zugrunde liegende Fehlercode ev, verbunden Fehlerkategorie ecat und erklärende String what_arg. Der String zurückgegeben wird what() garantiert what_arg enthalten .
    Original:
    Constructs with underlying error code ev, associated error category ecat and explanatory string what_arg. The string returned by what() is guaranteed to contain what_arg.
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    Parameter

    ec -
    Fehlercode
    Original:
    error code
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    ev -
    Fehlercode im Basis-Codierung
    Original:
    error code in base encoding
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    ecat -
    die Kategorie der Fehler
    Original:
    the category of error
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    what_arg -
    erklärende String
    Original:
    explanatory string
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    Beispiel

    Veranschaulicht, wie ein system_error Ausnahme von einem errno Wert zu schaffen
    Original:
    Demonstrates how to create a system_error exception from a errno value
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    #include <iostream>
#include <system_error>

int main()
{
    try
    {
        throw std::system_error(EDOM, std::system_category());
    }
    catch (const std::system_error& error)
    {
        std::cout << "Error: " << error.code()
                  << " - " << error.code().message() << '\n';
    }
}

    Output: 

    Error: system:33 - Numerical argument out of domain