вывод в символьном формате списка аргументов stdarg (character formatted output of a stdarg argument list)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
vfwprintf, vswprintf, vwprintf — wide-character formatted output
of a stdarg argument list
Синопсис (Synopsis)
#include <stdarg.h>
#include <stdio.h>
#include <wchar.h>
int vfwprintf(FILE *restrict stream, const wchar_t *restrict format,
va_list arg);
int vswprintf(wchar_t *restrict ws, size_t n,
const wchar_t *restrict format, va_list arg);
int vwprintf(const wchar_t *restrict format, va_list arg);
Описание (Description)
The functionality described on this reference page is aligned
with the ISO C standard. Any conflict between the requirements
described here and the ISO C standard is unintentional. This
volume of POSIX.1‐2017 defers to the ISO C standard.
The vfwprintf(), vswprintf(), and vwprintf() functions shall be
equivalent to fwprintf(), swprintf(), and wprintf() respectively,
except that instead of being called with a variable number of
arguments, they are called with an argument list as defined by
<stdarg.h>.
These functions shall not invoke the va_end macro. However, as
these functions do invoke the va_arg macro, the value of ap after
the return is unspecified.
Возвращаемое значение (Return value)
Refer to fwprintf(3p).
Ошибки (Error)
Refer to fwprintf(3p).
The following sections are informative.
Примеры (Examples)
None.
Использование в приложениях (Application usage)
Applications using these functions should call va_end(ap)
afterwards to clean up.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
Section 2.5, Standard I/O Streams, fwprintf(3p)
The Base Definitions volume of POSIX.1‐2017, stdarg.h(0p),
stdio.h(0p), wchar.h(0p)
