vwprintf, vfwprintf, vswprintf, vwprintf_s, vfwprintf_s, vswprintf_s, vsnwprintf_s

Defined in header `<wchar.h>`
	(1)
int vwprintf( const wchar_t* format, va_list vlist );			(since 哋它亢95) (until 哋它亢99)
int vwprintf( const wchar_t* restrict format, va_list vlist );			(since 哋它亢99)
		(2)
int vfwprintf( MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 33 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE* stream, const wchar_t* format, va_list vlist );				(since 哋它亢95) (until 哋它亢99)
int vfwprintf( MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 32 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE* restrict stream, const wchar_t* restrict format, va_list vlist );				(since 哋它亢99)
			(3)
int vswprintf( wchar_t* buffer, MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 30 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE bufsz, const wchar_t* format, va_list vlist );					(since 哋它亢95) (until 哋它亢99)
int vswprintf( wchar_t* restrict buffer, MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 29 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE bufsz, const wchar_t* restrict format, va_list vlist );					(since 哋它亢99)
int vwprintf_s( const wchar_t* restrict format, va_list vlist);				(4)	(since 哋它亢11)
int vfwprintf_s( MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 28 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE* restrict stream, const wchar_t* restrict format, va_list vlist);				(5)	(since 哋它亢11)
int vswprintf_s( wchar_t* restrict buffer, rsize_t bufsz, const wchar_t* restrict format, va_list vlist);				(6)	(since 哋它亢11)
int vsnwprintf_s( wchar_t* restrict buffer, rsize_t bufsz, const wchar_t* restrict format, va_list vlist);				(7)	(since 哋它亢11)

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 MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 26 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE.

2) Writes the results to a file stream stream.

3) Writes the results to a wide string buffer. At most bufsz - 1 wide characters are written followed by null wide character. The resulting wide character string will be terminated with a null wide character, unless bufsz is zero.

4-6) Same as (1-3), except that the following errors are detected at runtime and call the currently installed MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 25 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE function:

the conversion specifier %n is present in format
any of the arguments corresponding to %s is a null pointer
format or buffer is a null pointer
bufsz is zero or greater than RSIZE_MAX / sizeof(wchar_t)
encoding errors occur in any of string and character conversion specifiers
(for vswprintf_s only), the string to be stored in buffer (including the trailing wide null) would be exceed bufsz.

7) Same as (6), except it will truncate the result to fit within the array pointed to by buffer.

As with all bounds-checked functions, vwprintf_s , vfwprintf_s, vswprintf_s, and vsnwprintf_s are only guaranteed to be available if __STDC_LIB_EXT1__ is defined by the implementation and if the user defines __STDC_WANT_LIB_EXT1__ to the integer constant 1 before including MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 24 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE.

Parameters

stream	-	output wide stream to write to
buffer	-	pointer to a wide string to write to
bufsz	-	maximum number of wide characters to write
format	-	pointer to a null-terminated wide string specifying how to interpret the data
vlist	-	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 23 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE containing the data to print.

The format string consists of ordinary wide characters (except %), which are copied unchanged into the output stream, and conversion specifications. Each conversion specification has the following format:

introductory % character.

(optional) one or more flags that modify the behavior of the conversion:

-: the result of the conversion is left-justified within the field (by default it is right-justified).
+: the sign of signed conversions is always prepended to the result of the conversion (by default the result is preceded by minus only when it is negative).
space: if the result of a signed conversion does not start with a sign character, or is empty, space is prepended to the result. It is ignored if + flag is present.
#: alternative form of the conversion is performed. See the table below for exact effects otherwise the behavior is undefined.
0: for integer and floating-point number conversions, leading zeros are used to pad the field instead of space characters. For integer numbers it is ignored if the precision is explicitly specified. For other conversions using this flag results in undefined behavior. It is ignored if - flag is present.

(optional) integer value or * that specifies minimum field width. The result is padded with space characters (by default), if required, on the left when right-justified, or on the right if left-justified. In the case when * is used, the width is specified by an additional argument of type int, which appears before the argument to be converted and the argument supplying precision if one is supplied. If the value of the argument is negative, it results with the - flag specified and positive field width (Note: This is the minimum width: The value is never truncated.).

(optional) . followed by integer number or *, or neither that specifies precision of the conversion. In the case when * is used, the precision is specified by an additional argument of type int, which appears before the argument to be converted, but after the argument supplying minimum field width if one is supplied. If the value of this argument is negative, it is ignored. If neither a number nor * is used, the precision is taken as zero. See the table below for exact effects of precision.

(optional) length modifier that specifies the size of the argument (in combination with the conversion format specifier, it specifies the type of the corresponding argument).

conversion format specifier.

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Conversion Specifier	Explanation	Expected Argument Type
Length Modifier →		`hh` (哋它亢99)	`h`	(none)	`l`	`ll` (哋它亢99)	`j` (哋它亢99)	`z` (哋它亢99)	`t` (哋它亢99)	`L`
`%`	Writes literal `%`. The full conversion specification must be `%%`.	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A
`c`	Writes a single character. The argument is first converted to wchar_t as if by calling MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 20 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE. If the l modifier is used, the `wint_t` argument is first converted to wchar_t.	N/A	N/A	int	wint_t	N/A	N/A	N/A	N/A	N/A
`s`	Writes a character string The argument must be a pointer to the initial element of a character array containing a multibyte character sequence beginning in the initial shift state, which is converted to wide character array as if by a call to MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 19 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE with zero-initialized conversion state. Precision specifies the maximum number of wide characters to be written. If Precision is not specified, writes every wide characters up to and not including the first null terminator. If the l specifier is used, the argument must be a pointer to the initial element of an array of wchar_t.	N/A	N/A	char*	wchar_t*	N/A	N/A	N/A	N/A	N/A
`d` `i`	Converts a signed integer into decimal representation [-]dddd. Precision specifies the minimum number of digits to appear. The default precision is 1. If both the converted value and the precision are 0 the conversion results in no characters.	signed char	short	int	long	long long	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 18 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE	signed MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 17 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 15 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE	N/A
`o`	Converts an unsigned integer into octal representation oooo. Precision specifies the minimum number of digits to appear. The default precision is 1. If both the converted value and the precision are 0 the conversion results in no characters. In the alternative implementation precision is increased if necessary, to write one leading zero. In that case if both the converted value and the precision are 0, single 0 is written.	unsigned char	unsigned short	unsigned int	unsigned long	unsigned long long	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 14 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 13 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE	unsigned version of MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 12 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE	N/A
`x` `X`	Converts an unsigned integer into hexadecimal representation hhhh. For the `x` conversion letters `abcdef` are used. For the `X` conversion letters `ABCDEF` are used. Precision specifies the minimum number of digits to appear. The default precision is 1. If both the converted value and the precision are 0 the conversion results in no characters. In the alternative implementation `0x` or `0X` is prefixed to results if the converted value is nonzero.									N/A
`u`	Converts an unsigned integer into decimal representation dddd. Precision specifies the minimum number of digits to appear. The default precision is 1. If both the converted value and the precision are 0 the conversion results in no characters.									N/A
`f` `F`	Converts floating-point number to the decimal notation in the style [-]ddd.ddd. Precision specifies the exact number of digits to appear after the decimal point character. The default precision is 6. In the alternative implementation decimal point character is written even if no digits follow it. For infinity and not-a-number conversion style see notes.	N/A	N/A	double	double(哋它亢99)	N/A	N/A	N/A	N/A	long double
`e` `E`	Converts floating-point number to the decimal exponent notation. For the `e` conversion style [-]d.ddd`e`±dd is used. For the `E` conversion style [-]d.ddd`E`±dd is used. The exponent contains at least two digits, more digits are used only if necessary. If the value is 0, the exponent is also 0. Precision specifies the exact number of digits to appear after the decimal point character. The default precision is 6. In the alternative implementation decimal point character is written even if no digits follow it. For infinity and not-a-number conversion style see notes.	N/A	N/A			N/A	N/A	N/A	N/A
`a` `A` (哋它亢99)	Converts floating-point number to the hexadecimal exponent notation. For the `a` conversion style [-]`0x`h.hhh`p`±d is used. For the `A` conversion style [-]`0X`h.hhh`P`±d is used. The first hexadecimal digit is not `0` if the argument is a normalized floating-point value. If the value is 0, the exponent is also 0. Precision specifies the exact number of digits to appear after the hexadecimal point character. The default precision is sufficient for exact representation of the value. In the alternative implementation decimal point character is written even if no digits follow it. For infinity and not-a-number conversion style see notes.	N/A	N/A			N/A	N/A	N/A	N/A
`g` `G`	Converts floating-point number to decimal or decimal exponent notation depending on the value and the precision. For the `g` conversion style conversion with style `e` or `f` will be performed. For the `G` conversion style conversion with style `E` or `F` will be performed. Let `P` equal the precision if nonzero, 6 if the precision is not specified, or 1 if the precision is 0. Then, if a conversion with style `E` would have an exponent of `X`: if P > X ≥ −4, the conversion is with style `f` or `F` and precision P − 1 − X. otherwise, the conversion is with style `e` or `E` and precision P − 1. Unless alternative representation is requested the trailing zeros are removed, also the decimal point character is removed if no fractional part is left. For infinity and not-a-number conversion style see notes.	N/A	N/A			N/A	N/A	N/A	N/A
`n`	Returns the number of characters written so far by this call to the function. The result is written to the value pointed to by the argument. The specification may not contain any flag, field width, or precision.	signed char*	short*	int*	long*	long long*	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 10 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE*	signed MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 09 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE*	MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 08 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE*	N/A
`p`	Writes an implementation defined character sequence defining a pointer.	N/A	N/A	void*	N/A	N/A	N/A	N/A	N/A	N/A

The floating-point conversion functions convert infinity to inf or infinity. Which one is used is implementation defined.

Not-a-number is converted to nan or nan(char_sequence). Which one is used is implementation defined.

The conversions F, E, G, A output INF, INFINITY, NAN instead.

Even though %c expects int argument, it is safe to pass a char because of the integer promotion that takes place when a variadic function is called.

The correct conversion specifications for the fixed-width character types (MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 07 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE, etc) are defined in the header MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 06 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE (although MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 05 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE, MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 04 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE, etc is synonymous with %jd, %ju, etc).

The memory-writing conversion specifier %n is a common target of security exploits where format strings depend on user input and is not supported by the bounds-checked printf_s family of functions.

There is a MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 02 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE after the action of each conversion specifier; this permits storing multiple %n results in the same variable or, as an edge case, printing a string modified by an earlier %n within the same call.

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Return value

1,4) The number of wide characters written if successful or negative value if an error occurred.

3) The number of wide characters written if successful or negative value if an error occurred. If the resulting string gets truncated due to bufsz limit, function returns the total number of characters (not including the terminating null wide character) which would have been written, if the limit were not imposed.

2,5) number of wide characters transmitted to the output stream or negative value if an output error, a runtime constraints violation error, or an encoding error occurred.

6) number of wide characters written to buffer, not counting the null wide character (which is always written as long as buffer is not a null pointer and bufsz is not zero and not greater than RSIZE_MAX/sizeof(wchar_t)), or zero on runtime constraint violations, and negative value on encoding errors.

7) number of wide characters not including the terminating null character (which is always written as long as buffer is not a null pointer and bufsz is not zero and not greater than RSIZE_MAX/sizeof(wchar_t)), which would have been written to buffer if bufsz was ignored, or a negative value if a runtime constraints violation or an encoding error occurred.

Notes

All these functions invoke va_arg at least once, the value of arg is indeterminate after the return. These functions to not invoke va_end, and it must be done by the caller.

While narrow strings provide MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN 13 HOURS 11 MINUTES 00 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE, which makes it possible to determine the required output buffer size, there is no equivalent for wide strings (until 哋它亢11's vsnwprintf_s), and in order to determine the buffer size, the program may need to call vswprintf, check the result value, and reallocate a larger buffer, trying again until successful.

vsnwprintf_s, unlike vswprintf_s, will truncate the result to fit within the array pointed to by buffer, even though truncation is treated as an error by most bounds-checked functions.

Example

Run this code

#include <locale.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <time.h>
#include <wchar.h>
 
void debug_wlog(const wchar_t* fmt, ...)
{
    struct timespec ts;
    timespec_get(&ts, TIME_UTC);
    char time_buf[100];
    MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN  13 HOURS 10 MINUTES 59 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE rc = MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN  13 HOURS 10 MINUTES 57 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE(time_buf, sizeof time_buf, "%D %T", MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN  13 HOURS 10 MINUTES 56 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE(&ts.tv_sec));
    MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN  13 HOURS 10 MINUTES 55 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE(time_buf + rc, sizeof time_buf - rc, ".%06ld UTC", ts.tv_nsec / 1000);
 
    va_list args;
    va_start(args, fmt);
    wchar_t buf[1024];
    int rc2 = vswprintf(buf, sizeof buf / sizeof *buf, fmt, args);
    va_end(args);
 
    if(rc2 > 0)
       MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN  13 HOURS 10 MINUTES 54 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE(L"%s [debug]: %ls\n", time_buf, buf);
    else
       MYMEMORY WARNING: YOU USED ALL AVAILABLE FREE TRANSLATIONS FOR TODAY. NEXT AVAILABLE IN  13 HOURS 10 MINUTES 52 SECONDS VISIT HTTPS://MYMEMORY.TRANSLATED.NET/DOC/USAGELIMITS.PHP TO TRANSLATE MORE(L"%s [debug]: (string too long)\n", time_buf);
}
 
int main(void)
{
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    debug_wlog(L"Logging, %d, %d, %d", 1, 2, 3);
}

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02/20/15 22:12:38.476575 UTC [debug]: Logging, 1, 2, 3

References

哋它亢23 standard (ISO/IEC 9899:2023):

7.29.2.5 The vfwprintf function (p: TBD)

7.29.2.7 The vswprintf function (p: TBD)

7.29.2.9 The vwprintf function (p: TBD)

K.3.9.1.6 The vfwprintf_s function (p: TBD)

K.3.9.1.8 The vsnwprintf_s function (p: TBD)

K.3.9.1.9 The vswprintf_s function (p: TBD)

K.3.9.1.11 The vwprintf_s function (p: TBD)

哋它亢17 standard (ISO/IEC 9899:2018):

7.29.2.5 The vfwprintf function (p: TBD)

7.29.2.7 The vswprintf function (p: TBD)

7.29.2.9 The vwprintf function (p: TBD)

K.3.9.1.6 The vfwprintf_s function (p: TBD)

K.3.9.1.8 The vsnwprintf_s function (p: TBD)

K.3.9.1.9 The vswprintf_s function (p: TBD)

K.3.9.1.11 The vwprintf_s function (p: TBD)

哋它亢11 standard (ISO/IEC 9899:2011):

7.29.2.5 The vfwprintf function (p: 417-418)

7.29.2.7 The vswprintf function (p: 419)

7.29.2.9 The vwprintf function (p: 420)

K.3.9.1.6 The vfwprintf_s function (p: 632)

K.3.9.1.8 The vsnwprintf_s function (p: 633-634)

K.3.9.1.9 The vswprintf_s function (p: 634-635)

K.3.9.1.11 The vwprintf_s function (p: 636)

哋它亢99 standard (ISO/IEC 9899:1999):

7.24.2.5 The vfwprintf function (p: 363)

7.24.2.7 The vswprintf function (p: 364)

7.24.2.9 The vwprintf function (p: 365)

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