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vwprintf, vfwprintf, vswprintf

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File input/output


Functions
File access
Direct input/output
Unformatted input/output
(C95)(C95)
(C95)
(C95)(C95)
(C95)
(C95)
Formatted input
Formatted output
vwprintfvfwprintfvswprintfvwprintf_svfwprintf_svswprintf_svsnwprintf_s
(C95)(C95)(C95)(C11)(C11)(C11)(C11)
File positioning
Error handling
Operations on files
 
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.

Contents

Parameters

Return value

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

Example

See also

prints formatted wide character output to stdout, a file stream or a buffer
(function) [edit]
C++ documentation for vwprintf, vfwprintf, vswprintf