名前空間
変種
操作

C-style file input/output

提供: cppreference.com
< cpp‎ | io


 
 
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)
 
CスタイルのI / O
機能します
Original:
Functions
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ファイルアクセス
Original:
File access
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直接入力/出力
Original:
Direct input/output
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fread
fwrite
書式なし入力/出力
Original:
Unformatted input/output
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書式付き入力/出力
Original:
Formatted input/output
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ファイル位置付け
Original:
File positioning
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ftell
fgetpos
fseek
fsetpos
rewind
エラー処理
Original:
Error handling
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clearerr
feof
ferror
perror
ファイルに対する操作
Original:
Operations on files
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remove
rename
tmpfile
tmpnam
 
C + +標準ライブラリのCI / Oの部分集合は、Cスタイルのストリーム入力/出力操作を実装します。 <cstdio>ヘッダが狭いと、マルチバイト文字の入力/出力機能を備えた一般的なファイル操作支援や物資の機能を提供し、<cwchar>ヘッダは、ワイド文字の入力/出力機能を備えた機能を提供します.
Original:
The C I/O subset of the C++ standard library implements C-style stream input/output operations. The <cstdio> header provides generic file operation support and supplies functions with narrow and multibyte character input/output capabilities, and the <cwchar> header provides functions with wide character input/output capabilities.
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C言語のストリーム型のみstd::FILE(注のポインタ経由でアクセスして操作することができるタイプstd::FILE*のオブジェクトである:それは、このようなコピーのアドレスを使用して、間接参照し、有効なstd::FILEをコピーすることによって、タイプFILE*のローカルオブジェクトを作成することは可能かもしれないがI / O機能)未定義の動作です。各Cストリームは、外部の物理デバイス(ファイル、標準入力ストリーム、プリンタ、シリアルポートなど)に関連付けられています.
Original:
C streams are objects of type std::FILE that can only be accessed and manipulated through pointers of type std::FILE* (Note: while it may be possible to create a local object of type std::FILE by dereferencing and copying a valid FILE*, using the address of such copy in the I/O functions is undefined behavior). Each C stream is associated with an external physical device (file, standard input stream, printer, serial port, etc).
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C言語のストリームはフォーマットされていないと、フォーマットされた入力と出力の両方に使用することができます。彼らは、ロケールに依存し、必要に応じてワイド/マルチバイト変換を実行することができる。とは異なり、C + +のストリームは、各ストリームは独自のロケールに関連付けられている、すべてのCのストリームは、同じロケールオブジェクトアクセス:最も最近std::setlocaleと共にインストールいずれかを.
Original:
C streams can be used for both unformatted and formatted input and output. They are locale-sensitive and may perform wide/multibyte conversions as necessary. Unlike C++ streams, where each stream is associated with its own locale, all C streams access the same locale object: the one most recently installed with std::setlocale.
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デバイス(例えば、POSIXのファイル記述子)にアクセスするために必要なシステム固有の情報に加えて、各Cストリームオブジェクトには、以下を保持します
Original:
Besides the system-specific information necessary to access the device (e.g. a POSIX file descriptor), each C stream object holds the following:
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1)
文字幅:ナローまたはワイド
Original:
Character width: narrow or wide
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2)
バッファリング状態:バッファリングされていない、完全バッファ、ラインバッファ.
Original:
Buffering state: unbuffered, line-buffered, fully buffered.
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3)
、ユーザ提供の外部バッファで置き換えることができるバッファ、.
Original:
The buffer, which may be replaced by an external, user-provided buffer.
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4)
I / Oモード:入力、出力、または更新(入力と出力の両方).
Original:
I/O mode: input, output, or update (both input and output).
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5)
バイナリ/テキスト·モード·インディケーター.
Original:
Binary/text mode indicator.
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6)
エンド·オブ·ファイルのステータスインジケータ.
Original:
End-of-file status indicator.
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7)
エラーステータスインジケータ.
Original:
Error status indicator.
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8)
ワイド文字ストリームのために、パースの状態を含む、ファイル位置指示子(タイプstd::fpos_tのオブジェクト)、(型のオブジェクトmbstate_t).
Original:
File position indicator (an object of type std::fpos_t), which, for wide character streams, includes the parse state (an object of type mbstate_t).
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目次

[編集] 機能します

ファイルアクセス
Original:
File access
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ファイルを開きます
Original:
opens a file
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(関数) [edit]
別の名前で既存のストリームを開きます
Original:
open an existing stream with a different name
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(関数) [edit]
ファイルを閉じます
Original:
closes a file
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(関数) [edit]
実際のファイルで出力ストリームを同期させます
Original:
synchronizes an output stream with the actual file
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(関数) [edit]
ワイド文字I / Oと狭い文字間のファイルストリームを切り替えI / O
Original:
switches a file stream between wide character I/O and narrow character I/O
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(関数) [edit]
ファイルストリーム用のバッファを設定します
Original:
sets the buffer for a file stream
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(関数) [edit]
ファイルストリーム用のバッファとそのサイズを設定します
Original:
sets the buffer and its size for a file stream
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(関数) [edit]
直接入力/出力
Original:
Direct input/output
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ファイルから読み込みます
Original:
reads from a file
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(関数) [edit]
ファイルに書き込みます
Original:
writes to a file
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(関数) [edit]
書式なし入力/出力
Original:
Unformatted input/output
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狭い文字
Original:
Narrow character
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ファイルストリームから文字を取得します
Original:
gets a character from a file stream
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(関数) [edit]
ファイルストリームから文字列を取得します
Original:
gets a character string from a file stream
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(関数) [edit]
ファイルストリームに文字を書き込みます
Original:
writes a character to a file stream
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(関数) [edit]
ファイルストリームに文字列を書き込みます
Original:
writes a character string to a file stream
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(関数) [edit]
stdinから文字を読み取ります
Original:
reads a character from stdin
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(関数) [edit]
stdinから文字列を読み込みます
Original:
reads a character string from stdin
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(関数) [edit]
stdoutに文字を書き込みます
Original:
writes a character to stdout
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(関数) [edit]
stdoutに文字列を書き込みます
Original:
writes a character string to stdout
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(関数) [edit]
ファイルストリームに戻す文字を入れます
Original:
puts a character back into a file stream
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(関数) [edit]
ワイド文字
Original:
Wide character
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ファイルストリームからワイド文字を取得します
Original:
gets a wide character from a file stream
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(関数) [edit]
ファイルストリームからワイド文字列を取得します
Original:
gets a wide string from a file stream
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(関数) [edit]
ファイルストリームにワイド文字を書き込みます
Original:
writes a wide character to a file stream
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(関数) [edit]
ファイルストリームにワイド文字列を書き込みます
Original:
writes a wide string to a file stream
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(関数) [edit]
stdinからワイド文字を読み込みます
Original:
reads a wide character from stdin
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(関数) [edit]
stdoutにワイド文字を書き込みます
Original:
writes a wide character to stdout
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(関数) [edit]
ファイルストリームにワイド文字に戻します
Original:
puts a wide character back into a file stream
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(関数) [edit]
書式付き入力/出力
Original:
Formatted input/output
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狭い/マルチバイト文字
Original:
Narrow/multibyte character
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stdin、ファイルストリームまたはバッファからの書式付き入力を読み取ります
Original:
reads formatted input from stdin, a file stream or a buffer
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(関数) [edit]
(C++11)
(C++11)
(C++11)
stdin、ファイルストリームまたは可変引数リストを使用してbuffer
から書式付き入力を読み取ります
Original:
reads formatted input from stdin, a file stream or a buffer
using variable argument list
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(関数) [edit]
プリントはstdout、ファイルストリームまたはバッファに出力をフォーマットします
Original:
prints formatted output to stdout, a file stream or a buffer
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(関数) [edit]
プリントはstdout、ファイルストリームまたは可変引数リストを使用してbuffer
に出力をフォーマットします
Original:
prints formatted output to stdout, a file stream or a buffer
using variable argument list
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(関数) [edit]
ワイド文字
Original:
Wide character
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stdin、ファイルストリームまたはバッファから書式ワイド文字入力を読み取ります
Original:
reads formatted wide character input from stdin, a file stream or a buffer
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(関数) [edit]
(C++11)
(C++11)
(C++11)
stdin、ファイルstream
または可変引数リストを使用してバッファから書式ワイド文字入力を読み取ります
Original:
reads formatted wide character input from stdin, a file stream
or a buffer using variable argument list
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(関数) [edit]
プリントはstdout、ファイルストリームまたはバッファにワイド文字出力をフォーマットします
Original:
prints formatted wide character output to stdout, a file stream or a buffer
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(関数) [edit]
プリントはstdout、ファイルstream
または可変引数リストを使用してバッファにワイド文字出力をフォーマットします
Original:
prints formatted wide character output to stdout, a file stream
or a buffer using variable argument list
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(関数) [edit]
ファイル位置付け
Original:
File positioning
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現在のファイル位置指示子を返します
Original:
returns the current file position indicator
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(関数) [edit]
ファイル位置指示子を取得します
Original:
gets the file position indicator
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(関数) [edit]
ファイル位置指示子は、ファイル内の特定の場所に移動します
Original:
moves the file position indicator to a specific location in a file
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(関数) [edit]
ファイル位置指示子は、ファイル内の特定の場所に移動します
Original:
moves the file position indicator to a specific location in a file
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(関数) [edit]
ファイル位置指示子は、ファイル内の先頭に移動します
Original:
moves the file position indicator to the beginning in a file
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(関数) [edit]
エラー処理
Original:
Error handling
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エラーをクリアします
Original:
clears errors
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(関数) [edit]
エンド·オブ·ファイルをチェックします
Original:
checks for the end-of-file
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(関数) [edit]
ファイルのエラーをチェックします
Original:
checks for a file error
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(関数) [edit]
stderrに現在のエラーの対応する文字列が表示されます
Original:
displays a character string corresponding of the current error to stderr
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(関数) [edit]
ファイルに対する操作
Original:
Operations on files
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ファイルを消去
Original:
erases a file
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(関数) [edit]
ファイルの名前を変更します
Original:
renames a file
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(関数) [edit]
作成され、一時的な、自動削除するファイルを開きます
Original:
creates and opens a temporary, auto-removing file
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(関数) [edit]
一意のファイル名を返します
Original:
returns a unique filename
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(関数) [edit]

[編集] タイプ

Defined in header <cstdio>
タイプ
Original:
Type
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Definition
FILE
CI / Oストリームを制御するために必要なすべての情報を保持することが可能なタイプ
Original:
type, capable of holding all information needed to control a C I/O stream
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fpos_t
一意のファイル内の位置を特定することができるタイプ
Original:
type, capable of uniquely specifying a position in a file
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[編集] マクロ

Defined in header <cstdio>
stdin
stdout
stderr
型の式FILE*はエラー出力ストリームに関連付けられた型
の出力streamFILE*expressionに関連付けられた型の入力stream
expressionFILE*に関連付けられている
Original:
expression of type FILE* associated with the input stream
expression of type FILE* associated with the output stream
expression of type FILE* associated with the error output stream
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(マクロ定数)
EOF
タイプintと負の値の整数定数式
Original:
integer constant expression of type int and negative value
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(マクロ定数)
FOPEN_MAX
同時にオープンできるファイルの数
Original:
number of files that can be open simultaneously
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(マクロ定数)
FILENAME_MAX
サイズは最長のサポートされているファイル名を保持するためにchar型の配列のために必要
Original:
size needed for an array of char to hold the longest supported file name
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(マクロ定数)
BUFSIZ
std::setbufで使用されるバッファのサイズ
Original:
size of the buffer used by std::setbuf
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(マクロ定数)
_IOFBF
_IOLBF
_IONBF
完全に、I /std::setbuf示す行へO
argumentは非バッファI / Oを示すstd::setbufへのI /O
argumentをバッファリングバッファリングされたことを示すstd::setbufへの引数
Original:
argument to std::setbuf indicating fully buffered I/O
argument to std::setbuf indicating line buffered I/O
argument to std::setbuf indicating unbuffered I/O
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(マクロ定数)
SEEK_SET
SEEK_CUR
SEEK_END
ファイルの終端からシークを示すstd::fseekに現在のファイルposition
argumentから求める示すfilestd::fseekargumentの先頭から
までシークを示すstd::fseekへの引数
Original:
argument to std::fseek indicating seeking from beginning of the file
argument to std::fseek indicating seeking from the current file position
argument to std::fseek indicating seeking from end of the file
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(マクロ定数)
TMP_MAX
std::tmpnamによって生成することができるユニークなファイル名の最大数
Original:
maximum number of unique filenames that can be generated by std::tmpnam
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(マクロ定数)
L_tmpnam
サイズはstd::tmpnamの結果を保持するchar型の配列のために必要
Original:
size needed for an array of char to hold the result of std::tmpnam
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(マクロ定数)