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std::basic_istream::~basic_istream

提供: cppreference.com
< 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)
 
virtual ~basic_istream();
入力ストリームを破棄.
Original:
Destructs the input stream.
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[編集] ノート

このデストラクタは、基本となるストリームバッファ(rdbuf())上の任意の操作を実行できません:そのような派生として入力ストリームのデストラクタstd::basic_ifstreamstd::basic_istringstreamstreambuffersのデストラクタを呼び出す必要があります.
Original:
This destructor does not perform any operation on the underlying streambuffer (rdbuf()): the destructors of the derived input streams such as std::basic_ifstream and std::basic_istringstream are responsible for calling the destructors of the streambuffers.
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[編集]

#include <sstream>
#include <iostream>
 
void print_stringbuf(std::streambuf* p)
{
    std::istream buf(p); // buf shares the buffer with s1
    int n;
    buf >> n;
    std::cout << n;
} // calls the destructor of buf. p remains unaffected
 
int main()
{
    std::istringstream s1("10 20");
    print_stringbuf(s1.rdbuf());
    int n;
    s1 >> n;
    std::cout << ',' << n << '\n';
}

Output:

10,20