#include <stdio.h>
#include <wchar.h>
#include <errno.h>

typedef wchar_t WCHAR;
typedef const wchar_t * PCWCH;
#define WIDEN2(x)       L ## x
#define WIDEN(x)        WIDEN2(x)
#ifdef _WIN32
#define __WFUNCTION__   WIDEN(__FUNCTION__) L"(): "
#elif __linux__
#define MAX_FUNC_NAME_SIZE  1024
WCHAR func_name[MAX_FUNC_NAME_SIZE];
#define __WFUNCTION__
    (AsciiStrToUnicodeStr(__FUNCTION__, func_name, MAX_FUNC_NAME_SIZE) == 0) ? func_name : L"(): "
#endif


int AsciiStrToUnicodeStr(const char *src, WCHAR *destination, unsigned int dest_max)
{
    size_t retval;
    if (!src || !destination || (dest_max == 0)) {
        return -EINVAL;
    }
    retval = mbstowcs(destination, src, dest_max);
    return (retval == -1) ? retval : 0;
}

void DbgTrace(PCWCH  pwcFormat,...)
{

    wprintf(L"%lsn", pwcFormat);

}

void test()
{

     DbgTrace(__WFUNCTION__ L"ERROR: Null string passedrn");
}

int main()
{
     DbgTrace(__WFUNCTION__ L"ERROR: Null string passedrn");
    test();
}