名前空間
変種
操作

std::showbase, std::noshowbase

提供: cppreference.com
< cpp‎ | io‎ | manip

 
 
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
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(廃止予定)
ストリーム
Original:
Streams
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
抽象化
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
ファイル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
文字列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
アレイの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(廃止予定)
ostrstream(廃止予定)
strstream(廃止予定)
タイプ
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
エラーカテゴリインターフェース
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)
 
入力/出力マニピュレータ
浮動小数点の書式
Original:
Floating-point formatting
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
整数フォーマット
Original:
Integer formatting
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
setbase
showbase
noshowbase
ブールの書式
Original:
Boolean formatting
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
boolalpha
noboolalpha
フィールド幅と塗りつぶしコントロール
Original:
Field width and fill control
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
その他の書式
Original:
Other formatting
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
空白処理
Original:
Whitespace processing
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
出力がフラッシュします
Original:
Output flushing
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ステータスフラグ操作
Original:
Status flags manipulation
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
時間とお金のI / O
Original:
Time and money I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
get_money(C++11)
get_time(C++11)
put_money(C++11)
put_time(C++11)
 
Defined in header <ios>
std::ios_base& showbase( std::ios_base& str );
(1)
std::ios_base& noshowbase( std::ios_base& str );
(2)
1)
showbaseを呼び出したかのようにストリームstrstr.setf(std::ios_base::showbase)フラグをイネーブルにします
Original:
enables the showbase flag in the stream str as if by calling str.setf(std::ios_base::showbase)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
showbaseを呼び出したかのようにストリームstrstr.unsetf(std::ios_base::showbase)フラグを無効にします
Original:
disables the showbase flag in the stream str as if by calling str.unsetf(std::ios_base::showbase)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
これは、I / Oのマニピュレータである、そのようなタイプのout << std::showbaseのいずれout、またはそのようなタイプの任意のstd::basic_ostreamin >> std::showbaseためinとして式を持つstd::basic_istreamとして式と呼ばれるかもしれない.
Original:
This is an I/O manipulator, it may be called with an expression such as out << std::showbase for any out of type std::basic_ostream or with an expression such as in >> std::showbase for any in of type std::basic_istream.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

目次

[編集] パラメータ

str -
I / Oストリームを参照します
Original:
reference to I/O stream
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集] 値を返します

str(操作後のストリームへの参照)
Original:
str (reference to the stream after manipulation)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[編集]

#include <sstream>
#include <locale>
#include <iostream>
#include <iomanip>
int main()
{
    // showbase affects the output of octals and hexadecimals
    std::cout << std::hex
              << "showbase: " << std::showbase << 42 << '\n'
              << "noshowbase: " << std::noshowbase << 42 << '\n';
 
    // and both input and output of monetary values
    std::locale::global(std::locale("en_US.utf8"));
    long double val = 0;
    std::istringstream is("3.14");
    is >> std::showbase >> std::get_money(val);
    std::cout << "With showbase, parsing 3.14 as money gives " << val << '\n';
    is.seekg(0);
    is >> std::noshowbase >> std::get_money(val);
    std::cout << "Without showbase, parsing 3.14 as money gives " << val << '\n';
}

Output:

showbase: 0x2a
noshowbase: 2a
With showbase, parsing 3.14 as money gives 0
Without showbase, parsing 3.14 as money gives 314

[編集] も参照してください

指定されたios_bas​​eのフラグをクリアします
Original:
clears the specified ios_base flags
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(機能) [edit]
指定されたios_bas​​eのフラグが設定されます
Original:
sets the specified ios_base flags
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(機能) [edit]