std::basic_filebuf::pbackfail

 

C++

言語

コンセプト

ユーティリティライブラリ

ストリングスライブラリ

コンテナライブラリ

アルゴリズムライブラリ

イテレータライブラリ

ニューメリックスライブラリ

入力/出力ライブラリ

ローカライゼーションライブラリ

正規表現ライブラリ (C++11)

アトミック操作ライブラリ (C++11)

スレッドのサポートライブラリ (C++11)

 

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)

 

std::basic_filebuf

パブリックメンバ関数 Original: Public member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_filebuf::basic_filebuf

basic_filebuf::~basic_filebuf

basic_filebuf::operator= (C++11)

basic_filebuf::swap (C++11)

basic_filebuf::is_open

basic_filebuf::open

basic_filebuf::close

メンバ関数を保護しました Original: Protected member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_filebuf::showmanyc

basic_filebuf::underflow

basic_filebuf::uflow

basic_filebuf::pbackfail

basic_filebuf::overflow

basic_filebuf::setbuf

basic_filebuf::seekoff

basic_filebuf::seekpos

basic_filebuf::sync

basic_filebuf::imbue

非メンバ関数 Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

swap(std::basic_filebuf) (C++11)

 

protected: virtual int_type pbackfail( int_type c = Traits::eof() )

3つの方法のいずれかで、c取り戻すエリアに文字を入れます

Original:

Puts the character c back into the get area, in one of the three ways:

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1)

単純に、1ずつデクリメントcTraits::eq_int_type(c,traits::eof())は、プットバックの余地がある場合cを呼び出すとによって決定されるEOF文字でない場合、およびTraits::eq(to_char_type(c),gptr()[-1])はまさに最も最近gptr()によって決定されるように、get領域から読み込まれた文字である場合.

Original:

If c is not the EOF character, as determined by calling Traits::eq_int_type(c,traits::eof()) and if there is room for a putback, and if c is exactly the character that was most recently read from the get area, as determined by Traits::eq(to_char_type(c),gptr()[-1]), then simply decrements gptr() by one.

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2)

cがEOF文字でない場合は、プットバックの余地がある場合Traits::eq_int_type(c,traits::eof())を呼び出すとによって決定され、バッファは取得面積、デクリメントgptr()を修正することを許可されていて、そこにcを書き込みます。これは関連する文字列（ファイル）を変更しませんが、専用メモリ領域を取得.

Original:

If c is not the EOF character, as determined by calling Traits::eq_int_type(c,traits::eof()) and if there is room for a putback, and if the buffer is allowed to modify the get area, decrements gptr() and writes c to there. Note that this does not modify the associated character sequence (the file), but only the get area in memory.

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3)

cは、EOF文字（Traits::eq_int_type(c,traits::eof())戻りtrue）で、プットバックの余地がある場合、デクリメントgptr()。場合これが最後の文字が再度読み取り可能な読みにするという効果を持っている.

Original:

If c is the EOF character (Traits::eq_int_type(c,traits::eof()) returns true), and if there is room for a putback, decrements gptr(). This has the effect of making the last character read available for reading once again.

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ファイルが開いていない場合（is_open()==false、この関数が返すTraits::eof()直ちに.

Original:

If the file is not open (is_open()==false, this function returns Traits::eof() immediately.

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パラメータ

c

-

プットバック、またはEOF文字 Original: the character to putback, or eof The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

値を返します

1-2) c

3) Traits::not_eof(c)

Traits::eof()障害が発生した場合の.

Original:

Traits::eof() in case of failure.

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も参照してください

pbackfail [仮想]	おそらく入力シーケンスを変更して、入力シーケンスに戻す文字を入れます Original: puts a character back into the input sequence, possibly modifying the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (仮想protectedメンバ関数of std::basic_streambuf)
sungetc	入力シーケンス内の次のポインタは1で戻ります Original: moves the next pointer in the input sequence back by one The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数of std::basic_streambuf)
sputbackc	入力シーケンスで1つ前の文字を入れます Original: puts one character back in the input sequence The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数of std::basic_streambuf)
unget	文字をunextracts Original: unextracts a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数of std::basic_istream)
putback	入力ストリームに文字を入れます Original: puts character into input stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (パブリックメンバ関数of std::basic_istream)