std::basic_ios::bad

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• Einsetzen in den Ausgabe-Stream von put () oder write () aus irgendeinem Grund ausfällt .

  Original:

  Insertion into the output stream by put() or write() fails for any reason.

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• Einsetzen in den Ausgabe-Stream von operator <<, std::put_money oder std::put_time, konnte nicht abgeschlossen werden, da das Ende der Ausgabe-Stream erreicht wurde (die Facette der Formatierung ausgegeben Funktion wie num_put::put() oder money_put::put(), liefert einen Iterator iter so dass iter.failed()==true)

  Original:

  Insertion into the output stream by operator <<, std::put_money or std::put_time, could not complete because the end of the output stream was reached (The facet's formatting output function such as num_put::put() or money_put::put(), returns an iterator iter such that iter.failed()==true)

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• Stream ist mit einem Null-Zeiger für RDBUF () konstruiert oder putback () / unget () wird auf einen Strom mit einer null RDBUF () oder eine Null-Zeiger übergeben operator << (basic_streambuf *) genannt

  Original:

  Stream is constructed with a null pointer for rdbuf(), or putback()/unget() is called on a stream with a null rdbuf(), or a null pointer passed to operator<<(basic_streambuf*)

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• RDBUF () -> sputbackc () oder RDBUF () -> sungetc () return Eigenschaften :: eof (), um putback () oder unget ()

  Original:

  rdbuf()->sputbackc() or rdbuf()->sungetc() return traits::eof() to putback() or unget()

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• RDBUF () -> pubsync () gibt -1 zu synchronisieren (), um flush (), oder an den Destruktor ostream :: sentry auf einem unitbuf Stream

  Original:

  rdbuf()->pubsync() returns -1 to sync(), to flush(), or to the destructor of ostream::sentry on a unitbuf stream

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• Ausnahme wird während einer I / O-Operation von jedem Mitglied Funktion der zugehörigen Strompuffers geworfen (zB sbumpc (), xsputn (), sgetc (), overflow (), etc)

  Original:

  Exception is thrown during an I/O operation by any member function of the associated stream buffer (e.g. sbumpc(), xsputn(), sgetc(), overflow(), etc)

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• Ausnahme ist in iword () oder PWord (geworfen) (zB std :: bad_alloc)

  Original:

  Exception is thrown in iword() or pword() (e.g. std::bad_alloc)

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[Bearbeiten] Parameter

[Bearbeiten] Rückgabewert

[Bearbeiten] Beispiel

#include <iostream>
#include <fstream>
#include <cstdlib>
int main()
{
    std::ifstream file("test.txt");
    if(!file)  // operator! is used here
    {  
        std::cout << "File opening failed\n";
        return EXIT_FAILURE;
    }
 
    // typical C++ I/O loop uses the return value of the I/O function
    // as the loop controlling condition, operator bool() is used here
    for(int n; file >> n; ) {
       std::cout << n << ' ';
    }
    std::cout << '\n';
 
    if (file.bad())
        std::cout << "I/O error while reading\n";
    else if (file.eof())
        std::cout << "End of file reached successfully\n";
    else if (file.fail())
        std::cout << "Non-integer data encountered\n";
}

[Bearbeiten] Siehe auch