Issues with setfill in a member function

Question

I am trying to create a program over multiple files that reads out the time, but I am having trouble displaying the time in the desired format. More specifically, setfill appears to be causing me problems.

Here is the beginning of a very long error messages I recieve when compiling:

error: no match for ‘operator<<’ in ‘std::operator<< [with _CharT = char, 
_Traits = std::char_traits<char>](((std::basic_ostream<char, 
std::char_traits<char> >&)(& std::cout)), std::setw(2)) << std::setfill 
[with _CharT = const char*](((const char*)"0"))’

Now, this message only appears when I have setfill in my member function. If I remove setfill there is no issues with output except the format is wrong.

The member function is:

Void Time::print()
{
    cout << setw (2) << setfill ("0") << hours << ":";
    cout << setw (2) << setfill ("0") << minutes << ":";
    cout << setw (2) << setfill ("0") << seconds << endl;
}

To be clear, I have included iomanip and setw has no problem working on its own.

Thanks.

Answer 1

In addition, if you are using a wstringstream, setfill wants a wchar.

Compare

std::stringstream ss;
ss << std::setw(2) << std::setfill('0') << hours << ":";

with

std::wstringstream ss;
ss << std::setw(2) << std::setfill(L'0') << hours << ":";

Answer 2

setfill takes a char, it should be '0' instead of "0"