bitmap functions related question

[asja]

Hi,
I am new to this forum and to Borland c++ Builder (I used to work in Visual Basic). I switched to c++ because of the speed of execution.

At present I am studying bitmaps and bit manipulation functions.

What puzzles me is that the code related to test() function works, for example:

bitset<8> myset (string("11100001"));
if (myset.test(0))
  Memo1->Text="Yes";

But the code related to count() function gives me a Linker Error, and won't start the program:

bitset<8> myset (string("11110011"));
if (myset.count()>2)
  Memo1->Text="Yes";

The included files are:

#include <vcl.h>
#pragma hdrstop
#include <iostream>
#include <string>
#include <bitset>
using namespace std;

I know that I miss something here, although I followed the Builder Help.

thanks

 

[2ffat]

I must admit, I've never used bitmaps. Just looking over the help files, I notice that count() required a pointer (*this). I don't know if that will help or not.


James P. Cottingham
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