Shows how to use debug class.
#include <xtd/xtd>
auto main() -> int {
diagnostics::debug::listeners().push_back(new_ptr<diagnostics::ostream_trace_listener>(console::out));
diagnostics::debug::auto_flush(true);
diagnostics::debug::indent();
diagnostics::debug::write_line("Entering Main");
console::write_line("Hello World.");
diagnostics::debug::write_line("Exiting Main");
diagnostics::debug::unindent();
}