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std::ios_base::precision

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C++
 
Библиотеки ввода / вывода
I / O манипуляторов
C-стиль I / O
Буферы
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Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(устарело)
Потоки
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Streams
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Абстракций
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
Файл I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Струнный I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Массив I / O
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Array I/O
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istrstream(устарело)
ostrstream(устарело)
strstream(устарело)
Типы
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Types
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streamoff
streamsize
fpos
Интерфейс Ошибка категории
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::ios_base
Член функций
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Member functions
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ios_base::ios_base
ios_base::~ios_base
Форматирование
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Formatting
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ios_base::flags
ios_base::setf
ios_base::unsetf
ios_base::precision
ios_base::width
Языки
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Locales
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ios_base::imbue
ios_base::getloc
Внутренние расширяемый массив
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Internal extensible array
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ios_base::xalloc
ios_base::iword
ios_base::pword
Разное
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Miscellaneous
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ios_base::register_callback
ios_base::sync_with_stdio
Член классов
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Member classes
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ios_base::failure
ios_base::Init
Член типов
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Member types
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ios_base::openmode
ios_base::fmtflags
ios_base::iostate
ios_base::seekdir
ios_base::event
ios_base::event_callback
 
streamsize precision() const;
 (1)
streamsize precision( streamsize new_precision );
 (2)
Управляет точностью (т.е. сколько цифр генерируются) определенных числовых преобразований выходных.
Original:
Manages the precision (i.e. how many digits are generated) of certain numeric output conversions.
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1)
Возвращает текущую точность.
Original:
Returns the current precision.
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2)
Устанавливает точность на заданное.
Original:
Sets the precision to the given one.
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Содержание

[править] Параметры

new_precision -
Новая настройка точности
Original:
new precision setting
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[править] Возвращаемое значение

точностью до вызова функции
Original:
the precision before the call to the function
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[править] Пример

Этот раздел не завершён
Причина: нет примера

[править] См. также

 manages field width
(public функция-член) [edit]
Источник — «http://ru.cppreference.com/mwiki/index.php?title=cpp/io/ios_base/precision&oldid=30802»