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std::basic_istream::operator=

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< cpp‎ | io‎ | basic istream

 
 
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
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
ファイルI / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
文字列I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
アレイのI / O
Original:
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
Original:
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::basic_istream
グローバルオブジェクト
Original:
Global objects
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cin
wcin
メンバ関数
Original:
Member functions
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basic_istream::basic_istream
basic_istream::~basic_istream
basic_istream::operator=(C++11)
書式付き入力
Original:
Formatted input
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basic_istream::operator>>
書式なし入力
Original:
Unformatted input
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basic_istream::get
basic_istream::peek
basic_istream::unget
basic_istream::putback
basic_istream::getline
basic_istream::ignore
basic_istream::read
basic_istream::readsome
basic_istream::gcount
ポジショニング
Original:
Positioning
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basic_istream::tellg
basic_istream::seekg
その他
Original:
Miscellaneous
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basic_istream::sync
basic_istream::swap(C++11)
メンバークラス
Original:
Member classes
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basic_istream::sentry
非メンバ関数
Original:
Non-member functions
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operator>>(std::basic_istream)
 
protected:
basic_istream& operator=( const basic_istream& rhs ) = delete;
(1)
protected:
basic_istream& operator=( basic_istream&& rhs );
(2) (C++11およびそれ以降)
1)
コピー代入演算子は保護されており、削除されます。入力ストリームがCopyAssignableではありません.
Original:
The copy assignment operator is protected, and is deleted. Input streams are not CopyAssignable.
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2)
ムーブ代入演算子の交換gcount()の値は、基本クラスのすべてのデータメンバ、rdbuf()を除き、rhsと、swap(*rhs)を呼び出したかのように。このムーブ代入演算子は保護されていますそれが唯一の派生可動入力ストリームクラスのムーブ代入演算子によって呼び出されstd::basic_ifstreamstd::basic_istringstream、これは正しく関連付けられstreambuffersを移動割り当てする方法を知っている.
Original:
The move assignment operator exchanges the gcount() values and all data members of the base class, except for rdbuf(), with rhs, as if by calling swap(*rhs). This move assignment operator is protected: it is only called by the move assignment operators of the derived movable input stream classes std::basic_ifstream and std::basic_istringstream, which know how to correctly move-assign the associated streambuffers.
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[編集] パラメータ

rhs -
*thisに割り当てるからbasic_istreamオブジェクト
Original:
the basic_istream object from which to assign to *this
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[編集]

#include <sstream>
#include <iostream>
int main()
{
    std::istringstream s1;
    s1 = std::istringstream("test"); // OK
 
    std::cin = std::istringstream("test"); // ERROR: 'operator=' is protected
}