|
#pragma once
#include <boost/noncopyable.hpp>
#include <boost/range/result_iterator.hpp>
#include <pstade/workaround/warning_no_copy_constructor.hpp>
// See: scope_guard
// at 'Function Objects' of http://boost-consulting.com/vault/
namespace pstade { namespace biscuit {
template< class State >
struct state_cur_guard :
private boost::noncopyable
{
typedef typename boost::range_result_iterator<State>::type iter_t;
explicit state_cur_guard(State& s) :
m_state(s), m_marker(s.get_cur()), m_dismissed(false)
{ }
~state_cur_guard()
{
if (!m_dismissed)
m_state.set_cur(m_marker);
}
iter_t marker() const
{ return m_marker; }
void dismiss()
{ m_dismissed = true; }
PSTADE_WORKAROUND_WARNING_NO_COPY_CONSTRUCTOR(state_cur_guard)
private:
State& m_state;
iter_t const m_marker;
bool m_dismissed;
};
} } // namespace pstade::biscuit
|
By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.
If a file you wish to view isn't highlighted, and is a text file (not binary), please
let us know and we'll add colourisation support for it.
This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.
A list of licenses authors might use can be found here