1 | //Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. |
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 | #ifndef UUID_7E48761AD92811DC9011477D56D89593 |
7 | #define UUID_7E48761AD92811DC9011477D56D89593 |
8 | |
9 | #include <boost/utility/enable_if.hpp> |
10 | #include <boost/exception/detail/is_output_streamable.hpp> |
11 | #include <sstream> |
12 | |
13 | #if (__GNUC__*100+__GNUC_MINOR__>301) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS) |
14 | #pragma GCC system_header |
15 | #endif |
16 | #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS) |
17 | #pragma warning(push,1) |
18 | #endif |
19 | |
20 | namespace |
21 | boost |
22 | { |
23 | template <class T,class U> |
24 | std::string to_string( std::pair<T,U> const & ); |
25 | std::string to_string( std::exception const & ); |
26 | |
27 | namespace |
28 | to_string_detail |
29 | { |
30 | template <class T> |
31 | typename disable_if<is_output_streamable<T>,char>::type to_string( T const & ); |
32 | using boost::to_string; |
33 | |
34 | template <class,bool IsOutputStreamable> |
35 | struct has_to_string_impl; |
36 | |
37 | template <class T> |
38 | struct |
39 | has_to_string_impl<T,true> |
40 | { |
41 | enum e { value=1 }; |
42 | }; |
43 | |
44 | template <class T> |
45 | struct |
46 | has_to_string_impl<T,false> |
47 | { |
48 | static T const & f(); |
49 | enum e { value=1!=sizeof(to_string(f())) }; |
50 | }; |
51 | } |
52 | |
53 | template <class T> |
54 | inline |
55 | typename enable_if<is_output_streamable<T>,std::string>::type |
56 | to_string( T const & x ) |
57 | { |
58 | std::ostringstream out; |
59 | out << x; |
60 | return out.str(); |
61 | } |
62 | |
63 | template <class T> |
64 | struct |
65 | has_to_string |
66 | { |
67 | enum e { value=to_string_detail::has_to_string_impl<T,is_output_streamable<T>::value>::value }; |
68 | }; |
69 | |
70 | template <class T,class U> |
71 | inline |
72 | std::string |
73 | to_string( std::pair<T,U> const & x ) |
74 | { |
75 | return std::string("(" ) + to_string(x.first) + ',' + to_string(x.second) + ')'; |
76 | } |
77 | |
78 | inline |
79 | std::string |
80 | to_string( std::exception const & x ) |
81 | { |
82 | return x.what(); |
83 | } |
84 | } |
85 | |
86 | #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS) |
87 | #pragma warning(pop) |
88 | #endif |
89 | #endif |
90 | |