/usr/include/boost/xpressive/detail/core
Edit: /usr/include/boost/xpressive/detail/core/adaptor.hpp (2370B)
///////////////////////////////////////////////////////////////////////////////
// adaptor.hpp
//
// Copyright 2008 Eric Niebler. Distributed under the Boost
// Software License, Version 1.0. (See accompanying file
// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_XPRESSIVE_DETAIL_CORE_ADAPTOR_HPP_EAN_10_04_2005
#define BOOST_XPRESSIVE_DETAIL_CORE_ADAPTOR_HPP_EAN_10_04_2005
// MS compatible compilers support #pragma once
#if defined(_MSC_VER)
# pragma once
#endif
#include
#include
#include
#include
#include
namespace boost { namespace xpressive { namespace detail
{
///////////////////////////////////////////////////////////////////////////////
// xpression_adaptor
//
// wrap a static xpression in a matchable interface so it can be stored
// in and invoked from a basic_regex object.
template
struct xpression_adaptor
: Base // either matchable or matchable_ex
{
typedef typename Base::iterator_type iterator_type;
typedef typename iterator_value::type char_type;
Xpr xpr_;
xpression_adaptor(Xpr const &xpr)
#if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(4))
// Ugh, gcc has an optimizer bug which elides this c'tor call
// resulting in pure virtual function calls.
__attribute__((__noinline__))
#endif
: xpr_(xpr)
{
}
virtual bool match(match_state &state) const
{
typedef typename boost::unwrap_reference::type xpr_type;
return implicit_cast(this->xpr_).match(state);
}
void link(xpression_linker &linker) const
{
this->xpr_.link(linker);
}
void peek(xpression_peeker &peeker) const
{
this->xpr_.peek(peeker);
}
private:
xpression_adaptor &operator =(xpression_adaptor const &);
};
///////////////////////////////////////////////////////////////////////////////
// make_adaptor
//
template
inline intrusive_ptr make_adaptor(Xpr const &xpr)
{
return intrusive_ptr(new xpression_adaptor(xpr));
}
}}} // namespace boost::xpressive::detail
#endif