wprintf_s.c File Reference

#include "safe_str_lib.h"

Include dependency graph for wprintf_s.c:

Functions
EXPORT int	wprintf_s (const wchar_t *restrict fmt,...)
	The wprintf_s function prints formatted output to stdout as wide string.

Function Documentation

wprintf_s()

EXPORT int wprintf_s	(	const wchar_t *restrict	fmt,
			...
	)

The wprintf_s function prints formatted output to stdout as wide string.

Note

POSIX specifies that errno is set on error. However, the safeclib extended ES* errors do not set errno, only when the underlying system vwprintf call fails, errno is set.

Remarks

SPECIFIED IN

• C11 standard (ISO/IEC 9899:2011): K.3.9.1.13 The wprintf_s function (p: 637-638) http://en.cppreference.com/w/c/io/fwprintf

Parameters

[in]	fmt	format-control wide string.
[in]	...	optional arguments

Precondition

fmt shall not be a null pointer.

fmt shall not contain the conversion specifier n

None of the arguments corresponding to s is a null pointer (not yet)

No encoding error shall occur.

Returns

On success the total number of wide characters written is returned.

On failure a negative number is returned, and possibly errno set to EINVAL or EOVERFLOW.

Return values

-ESNULLP	when fmt is NULL pointer
-EINVAL	when fmt contains n
-1	some other error. errno: EINVAL or EOVERFLOW

See also

vwfprintf_s(), fwprintf_s()