ungetwc

 

C

Language

Standard Library

Type support

Dynamic memory management

Error handling

Program utilities

Date and time utilities

Strings library

Algorithms

Numerics

Input/output support

Localization support

Thread support (C11)

Atomic operations (C11)

 

File input/output

Functions
File access
fopen freopen fclose fflush	fwide setbuf setvbuf
Direct input/output
fread
fwrite
Unformatted input/output
fgetc fgets fputc fputs getchar gets putchar puts ungetc	fgetwc fgetws fputwc fputws getwchar putwchar ungetwc
Formatted input/output
scanf fscanf sscanf vscanf vfscanf vsscanf (C99) (C99) (C99) printf fprintf sprintf snprintf (C99) vprintf vfprintf vsprintf vsnprintf (C99)	wscanf fwscanf swscanf vwscanf vfwscanf vswscanf (C99) (C99) (C99) wprintf fwprintf swprintf vwprintf vfwprintf vswprintf
File positioning
ftell
fgetpos
fseek
fsetpos
rewind
Error handling
clearerr
feof
ferror
perror
Operations on files
remove
rename
tmpfile
tmpnam

 

Defined in header <wchar.h>
wint_t ungetwc( wint_t ch, FILE *stream );

Puts the wide character ch back to the given file stream. Only one wide character pushback is guaranteed.

Parameters

ch	-	wide character to be put back
stream	-	file stream to put the wide character back to

Return value

On success ch is returned.

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

See also

ungetc	puts a character back into a file stream (function)
fgetwc getwc	gets a wide character from a file stream (function)