C / C++ / MFC

In the rare case the client receiving the returned string does not free memory in the string, you might have to free it yourself by using ::SysFreeString.

 SysFreeString Parameters
bstr 
Unicode string that was allocated previously, or NULL. <code>If NULL, the function simply returns</code>. 
Return Values
None.

Remarks
Passing into this function any invalid and, under some circumstances, <code>NULL pointers will result in unexpected termination of the application.</code>

Jason Henderson
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"If you are going through hell, keep going." - Sir Winston Churchill}

std::string stdStringFmt(const char* fmt, ...)
{
   const int TBUFSIZE= 2000;
   char tBuf[TBUFSIZE];

   va_list argptr;
   va_start(argptr, fmt);
   _vsnprintf(tBuf, TBUFSIZE, fmt, argptr);
   va_end(argptr);

   std::string out = tBuf;
   return out;
}

void Trace(std::ostringstream &s);

...

std::ostringstream traceMessage;

...

Trace(traceMessage << "Wankity wank with the number " << 7);

class CTest : public CDialog
{
private:
    CString m_strCaption;

public:
    ....
    SetCaption( const char *szCaption )
    {
        m_strCaption = szCaption;
    }
};

DoStuff()
{
   CTest myDlg;
   myDlg.SetCaption( "Cool caption" );
   myDlg.DoModal();
}

CTest myTest;
myTest.DoStuff();
myTest.DoModal();

 CTest::DoStuff()
{
 m_editInCTest.SetWindowText("a");
}

int main(int argc, TCHAR* argv[], TCHAR* envp[])
{
         volatile int pint[1] = {456};
         volatile int* p = pint;
         return 0;
}

int* p = const_cast<int*>(pint);