1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
//-----------------------------------------------------------------------------
// boost variant/detail/variant_io.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2002-2003
// Eric Friedman, Itay Maman
//
// 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_VARIANT_DETAIL_VARIANT_IO_HPP
#define BOOST_VARIANT_DETAIL_VARIANT_IO_HPP
#include <iosfwd> // for std::basic_ostream forward declare
#include "boost/variant/variant_fwd.hpp"
#include "boost/detail/templated_streams.hpp"
#include "boost/variant/static_visitor.hpp"
namespace boost {
///////////////////////////////////////////////////////////////////////////////
// function template operator<<
//
// Outputs the content of the given variant to the given ostream.
//
// forward declare (allows output of embedded variant< variant< ... >, ... >)
template <
BOOST_TEMPLATED_STREAM_ARGS(E,T)
BOOST_TEMPLATED_STREAM_COMMA
BOOST_VARIANT_ENUM_PARAMS(typename U)
>
inline BOOST_TEMPLATED_STREAM(ostream, E,T)& operator<<(
BOOST_TEMPLATED_STREAM(ostream, E,T)& out
, const variant< BOOST_VARIANT_ENUM_PARAMS(U) >& rhs
);
namespace detail { namespace variant {
template <typename OStream>
class printer
: public boost::static_visitor<>
{
private: // representation
OStream& out_;
public: // structors
explicit printer(OStream& out)
: out_( out )
{
}
public: // visitor interface
template <typename T>
void operator()(const T& operand) const
{
out_ << operand;
}
};
}} // namespace detail::variant
template <
BOOST_TEMPLATED_STREAM_ARGS(E,T)
BOOST_TEMPLATED_STREAM_COMMA
BOOST_VARIANT_ENUM_PARAMS(typename U)
>
inline BOOST_TEMPLATED_STREAM(ostream, E,T)& operator<<(
BOOST_TEMPLATED_STREAM(ostream, E,T)& out
, const variant< BOOST_VARIANT_ENUM_PARAMS(U) >& rhs
)
{
detail::variant::printer<
BOOST_TEMPLATED_STREAM(ostream, E,T)
> visitor(out);
rhs.apply_visitor(visitor);
return out;
}
} // namespace boost
#endif // BOOST_VARIANT_DETAIL_VARIANT_IO_HPP
|
Swift