writing wchar_t element's to file

I have run a number of tests including:
- set the default file to to text rather than binary
- use the wfstream type
- use the wfstream::write() function
to no avail. Also tracing through the code, as far as I can ascertain, the stream types always produce ASCII output even when the input data is Unicode.

It would appear that you cannot use the STL streams for this purpose and will need to use one of the fwprintf()[^] or fwrite()[^] functions instead.

about wide character:

First try to understand how data is stored in a wchar_t variable. Its a two byte length. To accommodate old ascii data the sequence is like below:

wchar_t a;
a='A'; //This is correct Syntax
a=L'A';//This is correct Syntax too
//the above value in byte stored as [0]=65 [1]=0

According to your code it will stop writing when it gets a null character. and variable a holds a null character in the first byte.

either of two things
1. Use a class which is capable of writing wide string
or
2. I dont know c++. but using stdin function where file must have to be open as binary. and you can do your writing without trouble
[Edit]Correcting Sequence[/Edit]

Also Debug the code below:

int _tmain(int argc, _TCHAR* argv[])
{
	wchar_t a[3]=L"ab";
	char *b;
	
	b=(char*)(a);
	return 0;
}

if you debug you would see the stored character sequence is like below:

b[0]='a'
b[1]=0
b[2]='b'
b[3]=0
b[4]=0
b[5]=0

if you try to write the above string in a file using the class you have stated then you will get only "a" in the file. because in the second byte its getting string terminating character.
Note: for wide character string terminating character is sequence of two null value. but of course array[even_index] and array[even_index+1], not array[odd_index] and array[odd_index+1]. as example array[0] and array[1] but not array[1] and array[2]. here array is single byte string