Question

I’m reading a book about C++. The author shows this enum:

[Flags] enum class FlagBits{ Ready = 1, ReadMode = 2, WriteMode = 4,
EOF = 8, Disabled = 16};
FlagBits status = FlagBits::Ready | FlagBits::ReadMode | FlagBits::EOF;

and he says that status is equals to ‘0000 0000 0000 0000 0000 0000 0000 1011’, but when I write status to console:

Console::WriteLine(L”Current status: {0}”, status);

it shows: ‘Current status: Ready, ReadMode, EOF’. How can he know it, and how can I write status to console to show its binary form?

Answer 1

You should look into System::Convert::ToString

int main(array<System::String ^> ^args)
{
    FlagBits status = FlagBits::Ready | FlagBits::ReadMode | FlagBits::EOF;

    Console::WriteLine(L"Current status: {0}", System::Convert::ToString( ( int ) status, 2 ) );
    Console::ReadLine();

    return 0;
}

Output: Current Status: 1011

Edit: if you want the empty zero ‘padding’ just do:

Console::WriteLine(L"Current status: {0}", System::Convert::ToString( ( int ) status, 2 )->PadLeft( 32, '0' ) );

If you want it segmented into byte size pieces, then just split up the result and insert space / hyphens.