1// Copyright (c) 2001-2011 Hartmut Kaiser
2//
3// Distributed under the Boost Software License, Version 1.0. (See accompanying
4// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6#if !defined(BOOST_SPIRIT_ITERATOR_MULTI_PASS_WRAPPER_JUL_12_2009_0914PM)
7#define BOOST_SPIRIT_ITERATOR_MULTI_PASS_WRAPPER_JUL_12_2009_0914PM
8
9#if defined(_MSC_VER)
10#pragma once
11#endif
12
13#include <boost/mpl/bool.hpp>
14#include <boost/spirit/home/support/detail/scoped_enum_emulation.hpp>
15
16namespace boost { namespace spirit { namespace traits
17{
18 // declare special functions allowing to integrate any multi_pass iterator
19 // with expectation points
20
21 // normal iterators require no special handling
22 BOOST_SCOPED_ENUM_START(clear_mode)
23 {
24 clear_if_enabled,
25 clear_always
26 };
27 BOOST_SCOPED_ENUM_END
28
29 template <typename Iterator>
30 void clear_queue(Iterator&
31 , BOOST_SCOPED_ENUM(clear_mode) /*mode*/ = clear_mode::clear_if_enabled)
32 {}
33
34 template <typename Iterator>
35 void inhibit_clear_queue(Iterator&, bool)
36 {}
37
38 template <typename Iterator>
39 bool inhibit_clear_queue(Iterator&)
40 {
41 return false;
42 }
43
44 // Helper template to recognize a multi_pass iterator. This specialization
45 // will be instantiated for any non-multi_pass iterator.
46 template <typename Iterator>
47 struct is_multi_pass : mpl::false_ {};
48
49}}}
50
51#endif
52
53

source code of qtlocation/src/3rdparty/mapbox-gl-native/deps/boost/1.65.1/include/boost/spirit/home/support/multi_pass_wrapper.hpp