Passing variable number of arguments

you may use va_start, va_arg, va_end [^].
:)

I actually meant something like this:

DoSomething is function exported from other DLL.

In my application:

{
...
int nDataType = 0;
int nCount = ListBox.GetCount(); //Obtains number of items
for ( int i = 0; i < nCount; i++)
{
    nDataType = GetDataType(ListBox.GetText(i, someCString); //
    switch(nDataType)
    {
        //Now Create format from cases -> Let's say I have 5 items 
        // BYTE, DWORD, BYTE, DWORD, STRING
        // The LPSTR lpszFormat will be after loop "bdbds"
    }
}
...
/*And now I need to call the DoSomething("bdbds", thatBYTE, thatDWORD, thatByte, thatDWORD, thatSTRING);
*/


}

I cannot modify the code of DoSomething. I just need to call it with various informations, which are collected from ListBox. I hope it's more clear what I'm trying to achieve now.

It's something like
for(blahblah)
{
switch(TYPE)
case DWORD:
mov eax, CurSelData;
push eax;
break;

case BYTE:
mov eax, CurSelData:
push eax;
break;
...
}
// I know I highly abstracted that


and then after the loop the stack would be looking for example like:
ptrToFormat // "dbds"
data1 //(DWORD)
data2 //(BYTE)
data3 //(DWORD)
data4 //(STRING)

and then

call DoSomething



EDIT:
One guy told me, that it's not possible to do it with C++. So I made it with combining C++ and ASM.

You don't need any stinking assembly language. All you have to do is get the data on the stack. Now this is not portable, but near enough on all the platforms I use:

int *p = (int *)_alloca( 12 );
p[ 0 ]  = 1;
p[ 1 ]  = 2;
p[ 2 ]  = 3;
std::printf( "%d\n%d\n%d\n" );

If you're using a Unixy OS you might have to use alloca rather than _alloca.

Cheers,

Ash