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#include <stdio.h>
#include <wchar.h>
int vfwprintf_s(FILE * restrict stream, const wchar_t * restrict format, va_list arg)
{
__C_EXT(1, 201112L);
va_list ap;
va_copy(ap, arg);
int len = vsnwprintf(NULL, 0, format, arg);
wchar_t *buf = malloc((len + 1) * sizeof(wchar_t));
len = vsnprintf(buf, len, format, ap);
va_end(ap);
//len = (int)fwrite(buf, sizeof(*buf), len, stream);
free(buf);
return len;
}
/*
CEXT1(201112)
*/
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