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std::ios_base::precision

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< cpp‎ | io‎ | ios base

 
 
入力/出力ライブラリ
I / Oのマニピュレータ
CスタイルのI / O
バッファ
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(廃止予定)
ストリーム
Original:
Streams
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抽象化
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
ファイルI / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
文字列I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
アレイのI / O
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Array I/O
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istrstream(廃止予定)
ostrstream(廃止予定)
strstream(廃止予定)
タイプ
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Types
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streamoff
streamsize
fpos
エラーカテゴリインターフェース
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::ios_base
メンバ関数
Original:
Member functions
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ios_base::ios_base
ios_base::~ios_base
書式
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Formatting
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ios_base::flags
ios_base::setf
ios_base::unsetf
ios_base::precision
ios_base::width
ロケール
Original:
Locales
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ios_base::imbue
ios_base::getloc
内部拡張可能配列
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Internal extensible array
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ios_base::xalloc
ios_base::iword
ios_base::pword
その他
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Miscellaneous
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ios_base::register_callback
ios_base::sync_with_stdio
メンバークラス
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Member classes
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ios_base::failure
ios_base::Init
メンバータイプ
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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)
特定の数値の出力変換の精度(すなわち生成される桁数)を管理.
Original:
Manages the precision (i.e. how many digits are generated) of certain numeric output conversions.
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1)
現在の精度を返し.
Original:
Returns the current precision.
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2)
指定されたものに精度を設定します.
Original:
Sets the precision to the given one.
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目次

[編集] パラメータ

new_precision -
新しい精度設定
Original:
new precision setting
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[編集] 値を返します

関数の呼び出しの前に精密
Original:
the precision before the call to the function
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[編集]

[編集] も参照してください

manages field width
(パブリックメンバ関数) [edit]