std::vwprintf, std::vfwprintf, std::vswprintf

`<cwchar>`
`int vwprintf( const wchar_t* format, va_list vlist );`	(1)
`int vfwprintf( std::FILE* stream, const wchar_t* format, va_list vlist );`	(2)
`int vswprintf( wchar_t* buffer, std::size_t buf_size, const wchar_t* format, va_list vlist );`	(3)

, vlist, .

1) stdout.

2) stream.

3) buffer. size-1 , .

( %), , . :

:


		`hh`	`h`	()	`l`	`ll`	`j`	`z`	`t`	`L`
`%`	`%`. `%%`.	/	/	/	/	/	/	/	/	/
`c`	`wchar_t`, btowc. l, the `wint_t` argument is first converted to `wchar_t`.	/	/	`int`	`wint_t`	/	/	/	/	/
`s`	, . `wchar`, mbrtowc. `wchar`. , ( ). l, `wchar_t`.	/	/	`char*`	`wchar_t*`	/	/	/	/	/
`d` `i`	[-][0-9]* . `1`. `0`, .	`signed char`	`short`	`int`	`long`	`long long`	`intmax_t`	signed `size_t`	`ptrdiff_t`	/
`o`	[0-7]* . `1`. `0`, . : , . , `0`, `0`.	`unsigned char`	`unsigned short`	`unsigned int`	`unsigned long`	`unsigned long long`	`uintmax_t`	`size_t`	unsigned version of `ptrdiff_t`	/
`x` `X`	[0-F]* `x` `abcdef`. `X` `ABCDEF`. . `1`. `0`, . : `0x` `0X` .									/
`u`	[0-9]* . `1`. `0`, .									/
`f` `F`	[-]d.d, d - . `6`. : . NaN . .	/	/	`double`	`double` ( C99)	/	/	/	/	`long double`
`e` `E`	: AeB == A * pow (10, B) `e` `e`: `AeB`. `E` `E`: `AEB`. 2 . . `6`. : . NaN . .	/	/			/	/	/	/
`a` `A`	`a` [-]`0x`h.hhh`p`d. `A` [-]`0X`h.hhh`P`d. , `0`. `0`, `0`. . , . : . NaN . .	/	/			/	/	/	/
`g` `G`	`g` `e` `f`. `G` `E` `F`. `P` - . , , , `0`; , , `P`. P, X, : P> X -4, f / F -1 - X. e / E P - 1 : ; . NaN . .	/	/			/	/	/	/
`n`	, `%n`. , . - .	`signed char*`	`short*`	`int*`	`long*`	`long long*`	`intmax_t*`	`size_t*`	`ptrdiff_t*`	/
`p`	.	/	/	`void*`	/	/	/	/	/	/
`inf` `infinity` . NaN `nan` `nan(char_sequence)` . `F`, `E`, `G`, `A` `INF`, `INFINITY`, `NAN`. , `%c` `int`, `char` - `int` . (int8_t ) <cinttypes>(C++) <inttypes.h> (C) ( PRIdMAX, PRIuMAX, `%jd`, `%ju` ..). `%n` - , . `printf_s`. . `%n` `%n` . (UB).

1,2) .

3) ( ) , , size.

std::vsnprintf, , , std::vswprintf, , .

vprintfvfprintfvsprintfvsnprintf (C++11)	stdout, () []
wprintffwprintfswprintf	stdout, () []
C vwprintf, vfwprintf, vswprintf