Performing RegEx on open file

[drwbns]

Hi, like the title says, I'm trying to open a file and perform a regex on it, then print the matches, but I'm not sure if I have it right. I think I need to remove the line -

[for ( std::vector<TCHAR>::iterator It = buffer.begin();It != buffer.end(); It++ )

since I've already copied the file into the buffer, but how do I search the buffer?

std::ifstream in(TempFullPath, std::ios::in|std::ios::binary);

if( in.fail() )
{
	std::cout << "File does not exist or could not open file";
}


std::vector<TCHAR> buffer;
std::copy( 
		std::istreambuf_iterator<TCHAR>( in ),
		std::istreambuf_iterator<TCHAR>(),
		std::back_inserter( buffer )
		);
for ( std::vector<TCHAR>::iterator It = buffer.begin();It != buffer.end(); It++ ) {
	sbuf = (*It);
	if( boost::regex_search(sbuf , matches, re ) )
			{
				std::string value( matches[1].first, matches[1].second );
				StringCchCat(TextAreaBuffer, MAX_PATH, value.c_str());
				StringCchCat(TextAreaBuffer, MAX_PATH, TEXT("\r\n"));
				int ndx = GetWindowTextLength (textArea);
				SetFocus (textArea);
				#ifdef WIN32
					SendMessage (textArea, EM_SETSEL, (WPARAM)ndx, (LPARAM)ndx);
				#else
					SendMessage (textArea, EM_SETSEL, 0, MAKELONG (ndx, ndx));
				#endif
					SendMessage (textArea, EM_REPLACESEL, 0, (LPARAM) (TextAreaBuffer));
						
		}
}