]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // (C) Copyright David Abrahams 2002. |
2 | // (C) Copyright Jeremy Siek 2002. | |
3 | // (C) Copyright Thomas Witt 2002. | |
4 | // Distributed under the Boost Software License, Version 1.0. (See | |
5 | // accompanying file LICENSE_1_0.txt or copy at | |
6 | // http://www.boost.org/LICENSE_1_0.txt) | |
7 | ||
8 | // no include guard multiple inclusion intended | |
9 | ||
10 | // | |
11 | // This is a temporary workaround until the bulk of this is | |
12 | // available in boost config. | |
13 | // 23/02/03 thw | |
14 | // | |
15 | ||
16 | #include <boost/config.hpp> // for prior | |
17 | #include <boost/detail/workaround.hpp> | |
18 | ||
19 | #ifdef BOOST_ITERATOR_CONFIG_DEF | |
20 | # error you have nested config_def #inclusion. | |
1e59de90 | 21 | #else |
7c673cae | 22 | # define BOOST_ITERATOR_CONFIG_DEF |
1e59de90 | 23 | #endif |
7c673cae FG |
24 | |
25 | // We enable this always now. Otherwise, the simple case in | |
26 | // libs/iterator/test/constant_iterator_arrow.cpp fails to compile | |
27 | // because the operator-> return is improperly deduced as a non-const | |
28 | // pointer. | |
29 | #if 1 || defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ | |
20effc67 | 30 | || BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x531)) |
7c673cae FG |
31 | |
32 | // Recall that in general, compilers without partial specialization | |
33 | // can't strip constness. Consider counting_iterator, which normally | |
34 | // passes a const Value to iterator_facade. As a result, any code | |
35 | // which makes a std::vector of the iterator's value_type will fail | |
36 | // when its allocator declares functions overloaded on reference and | |
37 | // const_reference (the same type). | |
38 | // | |
39 | // Furthermore, Borland 5.5.1 drops constness in enough ways that we | |
40 | // end up using a proxy for operator[] when we otherwise shouldn't. | |
41 | // Using reference constness gives it an extra hint that it can | |
42 | // return the value_type from operator[] directly, but is not | |
43 | // strictly necessary. Not sure how best to resolve this one. | |
44 | ||
45 | # define BOOST_ITERATOR_REF_CONSTNESS_KILLS_WRITABILITY 1 | |
46 | ||
47 | #endif | |
48 | ||
20effc67 | 49 | #if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x5A0)) \ |
7c673cae FG |
50 | || (BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, <= 700) && defined(_MSC_VER)) \ |
51 | || BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042)) \ | |
52 | || BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x590)) | |
1e59de90 | 53 | |
7c673cae FG |
54 | # define BOOST_NO_LVALUE_RETURN_DETECTION |
55 | ||
56 | # if 0 // test code | |
57 | struct v {}; | |
58 | ||
59 | typedef char (&no)[3]; | |
60 | ||
61 | template <class T> | |
62 | no foo(T const&, ...); | |
63 | ||
64 | template <class T> | |
65 | char foo(T&, int); | |
66 | ||
67 | ||
68 | struct value_iterator | |
69 | { | |
70 | v operator*() const; | |
71 | }; | |
72 | ||
73 | template <class T> | |
74 | struct lvalue_deref_helper | |
75 | { | |
76 | static T& x; | |
77 | enum { value = (sizeof(foo(*x,0)) == 1) }; | |
78 | }; | |
79 | ||
80 | int z2[(lvalue_deref_helper<v*>::value == 1) ? 1 : -1]; | |
81 | int z[(lvalue_deref_helper<value_iterator>::value) == 1 ? -1 : 1 ]; | |
1e59de90 | 82 | # endif |
7c673cae FG |
83 | |
84 | #endif | |
85 | ||
86 | #if BOOST_WORKAROUND(__MWERKS__, <=0x2407) | |
87 | # define BOOST_NO_IS_CONVERTIBLE // "is_convertible doesn't work for simple types" | |
88 | #endif | |
89 | ||
90 | #if BOOST_WORKAROUND(__GNUC__, == 3) && BOOST_WORKAROUND(__GNUC_MINOR__, < 4) && !defined(__EDG_VERSION__) \ | |
20effc67 | 91 | || BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x551)) |
7c673cae FG |
92 | # define BOOST_NO_IS_CONVERTIBLE_TEMPLATE // The following program fails to compile: |
93 | ||
94 | # if 0 // test code | |
95 | #include <boost/type_traits/is_convertible.hpp> | |
96 | template <class T> | |
97 | struct foo | |
98 | { | |
99 | foo(T); | |
100 | ||
101 | template <class U> | |
102 | foo(foo<U> const& other) : p(other.p) { } | |
103 | ||
104 | T p; | |
105 | }; | |
106 | ||
107 | bool x = boost::is_convertible<foo<int const*>, foo<int*> >::value; | |
108 | # endif | |
109 | ||
110 | #endif | |
111 | ||
112 | ||
113 | #if !defined(BOOST_MSVC) && (defined(BOOST_NO_SFINAE) || defined(BOOST_NO_IS_CONVERTIBLE) || defined(BOOST_NO_IS_CONVERTIBLE_TEMPLATE)) | |
114 | # define BOOST_NO_STRICT_ITERATOR_INTEROPERABILITY | |
1e59de90 | 115 | #endif |
7c673cae | 116 | |
20effc67 | 117 | # if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564)) |
7c673cae FG |
118 | |
119 | // GCC-2.95 (obsolete) eagerly instantiates templated constructors and conversion | |
120 | // operators in convertibility checks, causing premature errors. | |
121 | // | |
122 | // Borland's problems are harder to diagnose due to lack of an | |
123 | // instantiation stack backtrace. They may be due in part to the fact | |
124 | // that it drops cv-qualification willy-nilly in templates. | |
125 | # define BOOST_NO_ONE_WAY_ITERATOR_INTEROP | |
1e59de90 | 126 | # endif |
7c673cae FG |
127 | |
128 | // no include guard; multiple inclusion intended |