C / C++ / MFC

CString VariantToString( const _variant_t& var )
{
	if ( var.vt == VT_EMPTY || var.vt == VT_NULL )
	{
		return CString( );
	}
	else
	{
		_bstr_t bstrVar( var );
		CString strVar( (LPCWSTR)bstrVar );
		return strVar;
	}
}

CString x = VariantToString( pRs_SP->Fields->Item["id_symposium"]->Value );

int num = 1234;
char str[32];
itoa(num, str, 8); // convert to octal

void __stdcall CWebBrowserWindow::OnCommandStateChange( 
	/*[in]*/ long Command, /*[in]*/ VARIANT_BOOL Enable )
{
	switch( Command )
	{
	case CSC_NAVIGATEFORWARD:
		m_bCanGoForward = ( Enable == VARIANT_TRUE ) ? true : false;
		break;
	case CSC_NAVIGATEBACK:
		m_bCanGoBack = ( Enable == VARIANT_TRUE ) ? true : false;
		break;
	default:
		//CSC_UPDATECOMMANDS = 0xFFFFFFFF
		break;
	}
}

#include <comdef.h>

class MyString {
public:
  std::string& get() {
    return m_str;
  }
  
  operator BSTR () {
    _bstr_t tmp;
    tmp = m_str.c_str();
    return tmp.copy();
  }
protected:
  std::string m_str;
};

std::string strName = "Jim";
BSTR bstrName;
MyString s;
s.get() =  strName;

bstrName = s;