std::cout, std::wcout

 

C++

Язык

Понятия (концепции)

Утилиты

Строки

Контейнеры

Алгоритмы

Итераторы

Работа с числами

Ввод / вывод

Локализация

Регулярные выражения (C++11)

Атомарные примитивы (C++11)

Потоки (C++11)

 

Библиотеки ввода / вывода

I / O манипуляторов

C-стиль I / O

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

basic_streambuf

basic_filebuf

basic_stringbuf

strstreambuf (устарело)

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

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

ios_base

basic_ios

basic_istream

basic_ostream

basic_iostream

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

basic_ifstream

basic_ofstream

basic_fstream

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

basic_istringstream

basic_ostringstream

basic_stringstream

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

istrstream (устарело)

ostrstream (устарело)

strstream (устарело)

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

streamoff

streamsize

fpos

Интерфейс Ошибка категории Original: Error category interface The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

iostream_category (C++11)

io_errc (C++11)

 

std::basic_ostream

Глобальные объекты Original: Global objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
cout wcout	cerr wcerr	clog wclog
Член функций Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::basic_ostream
basic_ostream::~basic_ostream
basic_ostream::operator= (C++11)
Форматированный ввод Original: Formatted input The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::operator<<
Неформатированная вход Original: Unformatted input The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::put
basic_ostream::write
Позиционирование Original: Positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::tellp
basic_ostream::seekp
Разное Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::flush
basic_ostream::swap (C++11)
Член классов Original: Member classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
basic_ostream::sentry
Не являющиеся членами функций Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
operator<<(std::basic_ostream)

 

Заголовочный файл <iostream>
extern std::ostream cout;	(1)
extern std::wostream wcout;	(2)

Глобальные объекты std::cout и std::wcout выход управления в поток буфера реализации определенного типа (производное от std::streambuf), связанные с стандартный выходной поток C stdout.

Original:

The global objects std::cout and std::wcout control output to a stream buffer of implementation-defined type (derived from std::streambuf), associated with the standard C output stream stdout.

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Эти объекты гарантированно будут построены до первого конструктора статического объекта вызывается и они гарантированно пережить последний деструктор статического объекта, так что всегда можно написать std::cout в пользовательском коде.

Original:

These objects are guaranteed to be constructed before the first constructor of a static object is called and they are guaranteed to outlive the last destructor of a static object, so that it is always possible to write to std::cout in user code.

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Если sync_with_stdio(false) было выдано, что это безопасно для одновременного доступа к этим объектам из нескольких потоков для форматированных и неформатированных выход.

Original:

Unless sync_with_stdio(false) has been issued, it is safe to concurrently access these objects from multiple threads for both formatted and unformatted output.

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После инициализации std::cout является галстук () 'д до std::cin и std::wcout в галстуке ()' д до std::wcin, это означает, что любые операции ввода на std::cin выполняет std::cout.flush() (с помощью конструктора std::basic_istream::sentry автора).

Original:

Once initialized, std::cout is tie()'d to std::cin and std::wcout is tie()'d to std::wcin, meaning that any input operation on std::cin executes std::cout.flush() (via std::basic_istream::sentry's constructor).

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После инициализации std::cout также связать () 'д до std::cerr и std::wcout является галстук ()' д до std::wcerr, это означает, что любые операции вывода на std::cerr выполняет std::cout.flush() (с помощью конструктора std::basic_ostream::sentry в) (начиная с C++11)

Original:

Once initialized, std::cout is also tie()'d to std::cerr and std::wcout is tie()'d to std::wcerr,, meaning that any output operation on std::cerr executes std::cout.flush() (via std::basic_ostream::sentry's constructor) (начиная с C++11)

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Пример

#include <iostream>
struct Foo {
    int n;
    Foo() {
       std::cout << "static constructor\n";
    }
    ~Foo() {
       std::cout << "static destructor\n";
    }
};
Foo f; // static object
int main()
{
    std::cout << "main function\n";
}

Вывод:

static constructor
main function
static destructor

См. также

Init	инициализирует стандартные объекты потока Original: initializes standard stream objects The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public член класса std::ios_base)
clog wclog	пишет в стандартный поток ошибок stderr (глобальный объект) C Original: writes to the standard C error stream stderr (глобальный объект) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
cout wcout	пишет в стандартный выходной поток stdout (глобальный объект) C Original: writes to the standard C output stream stdout (глобальный объект) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.