vfwprintf, vwprintf, vswprintf, vfwprintf_s, vwprintf_s, vswprintf_s, vsnwprintf_s - wide-character formatted output of a stdarg argument list
#include <stdarg.h> #include <stdio.h> #include <wchar.h> int vwprintf(const wchar_t *restrict format, va_list arg);
int vfwprintf(FILE *restrict stream, const wchar_t *restrict format, va_list arg);
int vswprintf(wchar_t *restrict s, size_t n, const wchar_t *restrict format, va_list arg);
#define __STDC_WANT_LIB_EXT1__ 1 #include <stdio.h> #include <wchar.h> int vwprintf_s(const wchar_t *restrict format, va_list arg);
int vfwprintf_s(FILE *restrict stream, const wchar_t *restrict format, va_list arg);
int vswprintf_s(wchar_t *restrict s, rsize_t n, const wchar_t *restrict format, va_list arg);
int vsnwprintf_s(wchar_t *restrict s, rsize_t n, const wchar_t *restrict format, va_list arg);
The vwprintf(), vfwprintf(), vswprintf(), vwprintf_s(), vfwprintf_s(), vswprintf_s(), and vsnwprintf_s() functions are the same as wprintf(), fwprintf(), swprintf(), wprintf_s(), fwprintf_s(), swprintf_s(), and snwprintf_s() 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 do not invoke the va_end() macro. However, as these functions do invoke the va_arg() macro, the value of ap after the return is indeterminate.
Refer to fwprintf(3C).
Refer to fwprintf(3C).
Applications using these functions should call va_end(ap) afterward to clean up.
See attributes(7) for descriptions of the following attributes:
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fwprintf(3C), setlocale(3C), attributes(7), standards(7), runtime_constraint_handler(3C)
See fwprintf(3C).