std::ungetwc

 

C++

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输入/输出库

I / O操纵

C-风格的I / O

缓冲区 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 （过时了）

流 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 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

文件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

字符串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

阵列的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 （过时了）

ostrstream （过时了）

strstream （过时了）

类型 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

Error类的接口 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）

 

C-风格的I / O

功能 Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
文件访问 Original: File access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fopen freopen fclose fflush	fwide setbuf setvbuf
直接输入/输出 Original: Direct input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fread
fwrite
未格式化的输入/输出 Original: Unformatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
fgetc fgets fputc fputs getchar gets putchar puts ungetc	fgetwc fgetws fputwc fputws getwchar putwchar ungetwc
格式化输入/输出 Original: Formatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
scanf fscanf sscanf vscanf vfscanf vsscanf （C++11） （C++11） （C++11） printf fprintf sprintf snprintf （C++11） vprintf vfprintf vsprintf vsnprintf （C++11）	wscanf fwscanf swscanf vwscanf vfwscanf vswscanf （C++11） （C++11） （C++11） wprintf fwprintf swprintf vwprintf vfwprintf vswprintf
文件定位 Original: File positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
ftell
fgetpos
fseek
fsetpos
rewind
错误处理 Original: Error handling The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clearerr
feof
ferror
perror
对文件的操作 Original: Operations on files The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
remove
rename
tmpfile
tmpnam

 

Defined in header <cwchar>
wint_t ungetc( wint_t ch, FILE *stream );

将宽字符ch给定的文件流.

Original:

Puts the wide character ch back to the given file stream.

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保证只有一个宽字符推回.

Original:

Only one wide character pushback is guaranteed.

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参数

ch	-	宽字符被放回来了 Original: wide character to be put back The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
stream	-	文件流把宽字符 Original: file stream to put the wide character back to The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

返回值

成功则返回ch.

Original:

On success ch is returned.

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在失败WEOF返回给定的流保持不变.

Original:

On failure WEOF is returned and the given stream remains unchanged.

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另请参阅

ungetc	把一个字符到一个文件流 Original: puts a character back into a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
fgetwc getwc	得到一个宽字符的文件流 Original: gets a wide character from a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
C documentation for ungetwc