vwprintf, vfwprintf, vswprintf

 

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>
int vwprintf( const wchar_t* format, va_list vlist );	(1)
int vfwprintf( FILE* stream, const wchar_t* format, va_list vlist );	(2)
int vswprintf( const wchar_t* buffer, size_t size, const wchar_t* format, va_list vlist );	(3)

Loads the data from locations, defined by vlist, converts them to wide string equivalents and writes the results to a variety of sinks.

1) Writes the results to stdout.

2) Writes the results to a file stream stream.

3) Writes the results to a wide string buffer.

Return value

Number of wide characters written if successful or negative value if an error occurred.

See also

wprintf fwprintf swprintf	prints formatted wide character output to stdout, a file stream or a buffer (function)