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std::basic_streambuf::sputn, std::basic_streambuf::xsputn

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< cpp‎ | io‎ | basic streambuf

 
 
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_streambuf
パブリックメンバ関数
Original:
Public member functions
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basic_streambuf::~basic_streambuf
ロケール
Original:
Locales
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basic_streambuf::pubimbue
basic_streambuf::getloc
ポジショニング
Original:
Positioning
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basic_streambuf::pubsetbuf
basic_streambuf::pubseekoff
basic_streambuf::pubseekpos
basic_streambuf::pubsync
領域を取得します
Original:
Get area
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basic_streambuf::in_avail
basic_streambuf::snextc
basic_streambuf::sbumpc
basic_streambuf::sgetc
basic_streambuf::sgetn
エリアを入れてください
Original:
Put area
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basic_streambuf::sputc
basic_streambuf::sputn
プット
Original:
Putback
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basic_streambuf::sputbackc
basic_streambuf::sungetc
メンバ関数を保護しました
Original:
Protected member functions
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basic_streambuf::basic_streambuf
basic_streambuf::operator=(C++11)
basic_streambuf::swap(C++11)
ロケール
Original:
Locales
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basic_streambuf::imbue
ポジショニング
Original:
Positioning
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basic_streambuf::setbuf
basic_streambuf::seekoff
basic_streambuf::seekpos
basic_streambuf::sync
領域を取得します
Original:
Get area
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basic_streambuf::showmanyc
basic_streambuf::underflow
basic_streambuf::uflow
basic_streambuf::xsgetn
basic_streambuf::eback
basic_streambuf::gptr
basic_streambuf::egptr
basic_streambuf::gbump
basic_streambuf::setg
エリアを入れてください
Original:
Put area
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basic_streambuf::xsputn
basic_streambuf::overflow
basic_streambuf::pbase
basic_streambuf::pptr
basic_streambuf::epptr
basic_streambuf::pbump
basic_streambuf::setp
プット
Original:
Putback
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basic_streambuf::pbackfail
 
std::streamsize sputn( const char_type* s, std::streamsize count );
(1)
protected:
virtual std::streamsize xsputn( const char_type* s, std::streamsize count );
(2)
1)
最派生クラスのxsputn(s, count)呼び出し.
Original:
Calls xsputn(s, count) of the most derived class.
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2)
最初の要素がcountによって指された文字配列から出力シーケンスにs文字を書き込みます。文字がsputc()を繰り返し呼び出したかのように書かれています。どちらcount文字が書き込まれたときに書き込みが停止またはsputc()への呼び出しがtraits::eof()返したでしょう.
Original:
Writes count characters to the output sequence from the character array whose first element is pointed to by s. The characters are written as if by repeated calls to sputc(). Writing stops when either count characters are written or a call to sputc() would have returned traits::eof().
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put領域が(pptr()==epptr())いっぱいになった場合、この関数はoverflow()に電話をかけるか、またはいくつかの他、不特定で呼び出しoverflow()の効果を達成することができる、意味.
Original:
If the put area becomes full (pptr()==epptr()), this function may call overflow(), or achieve the effect of calling overflow() by some other, unspecified, means.
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目次

[編集] パラメータ

(なし)
Original:
(none)
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[編集] 値を返します

正常に書き込まれた文字の数.
Original:
The number of characters successfully written.
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[編集]

#include <iostream>
#include <sstream>
 
int main()
{
    std::ostringstream s1;
    std::streamsize sz = s1.rdbuf()->sputn("This is a test", 14);
    s1 << '\n';
    std::cout << "The call to sputn() returned " << sz << '\n'
              << "The output sequence contains " << s1.str();
 
    std::istringstream s2;
    sz = s2.rdbuf()->sputn("This is a test", 14);
    std::cout << "The call to sputn() on an input stream returned " << sz << '\n';
}

Output:

The call to sputn() returned 14
The output sequence contains This is a test
The call to sputn() on an input stream returned 0

[編集] も参照してください

xsgetn()を呼び出します
Original:
invokes xsgetn()
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(パブリックメンバ関数) [edit]