[29] | 1 | /*============================================================================= |
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| 2 | Copyright (c) 2003 Giovanni Bajo |
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| 3 | Copyrigh (c) 2003 Martin Wille |
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| 4 | http://spirit.sourceforge.net/ |
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| 5 | |
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| 6 | Use, modification and distribution is subject to the Boost Software |
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| 7 | License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 8 | http://www.boost.org/LICENSE_1_0.txt) |
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| 9 | =============================================================================*/ |
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| 10 | #include <boost/spirit/iterator/multi_pass.hpp> |
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| 11 | #include <iterator> |
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| 12 | #include "impl/sstream.hpp" |
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| 13 | #include <boost/detail/lightweight_test.hpp> |
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| 14 | |
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| 15 | using namespace std; |
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| 16 | using namespace boost::spirit; |
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| 17 | |
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| 18 | // Test for bug #720917 |
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| 19 | // http://sf.net/tracker/index.php?func=detail&aid=720917&group_id=28447&atid=393386 |
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| 20 | // |
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| 21 | // Check that it's possible to use multi_pass |
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| 22 | // together with standard library as a normal iterator |
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| 23 | // |
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| 24 | |
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| 25 | // a functor to test out the functor_multi_pass |
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| 26 | class my_functor |
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| 27 | { |
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| 28 | public: |
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| 29 | typedef char result_type; |
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| 30 | my_functor() |
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| 31 | : c('A') |
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| 32 | {} |
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| 33 | |
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| 34 | char operator()() |
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| 35 | { |
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| 36 | if (c == 'M') |
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| 37 | return eof; |
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| 38 | else |
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| 39 | return c++; |
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| 40 | } |
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| 41 | |
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| 42 | static result_type eof; |
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| 43 | private: |
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| 44 | char c; |
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| 45 | }; |
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| 46 | |
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| 47 | my_functor::result_type my_functor::eof = '\0'; |
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| 48 | |
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| 49 | //////////////////////////////////////////////// |
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| 50 | // four types of multi_pass iterators |
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| 51 | typedef multi_pass< |
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| 52 | my_functor, |
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| 53 | multi_pass_policies::functor_input, |
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| 54 | multi_pass_policies::first_owner, |
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| 55 | multi_pass_policies::no_check, |
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| 56 | multi_pass_policies::std_deque |
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| 57 | > functor_multi_pass_t; |
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| 58 | |
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| 59 | typedef multi_pass<istream_iterator<char> > default_multi_pass_t; |
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| 60 | typedef look_ahead<istream_iterator<char>, 6> fixed_multi_pass_t; |
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| 61 | |
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| 62 | typedef multi_pass< |
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| 63 | istream_iterator<char>, |
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| 64 | multi_pass_policies::input_iterator, |
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| 65 | multi_pass_policies::first_owner, |
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| 66 | multi_pass_policies::buf_id_check, |
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| 67 | multi_pass_policies::std_deque |
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| 68 | > first_owner_multi_pass_t; |
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| 69 | |
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| 70 | |
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| 71 | //////////////////////////////////////////////// |
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| 72 | // the test cases |
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| 73 | template <typename IterT> |
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| 74 | void construct_string_from(void) |
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| 75 | { |
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| 76 | sstream_t ss; |
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| 77 | ss << "test string"; |
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| 78 | |
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| 79 | IterT mpend; |
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| 80 | istream_iterator<char> a(ss); |
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| 81 | IterT mp1(a); |
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| 82 | |
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| 83 | std::string dummy; |
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| 84 | #ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS |
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| 85 | dummy.assign(mp1, mpend); |
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| 86 | #else |
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| 87 | copy(mp1, mpend, inserter(dummy, dummy.end())); |
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| 88 | #endif |
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| 89 | } |
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| 90 | |
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| 91 | template <> |
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| 92 | void construct_string_from<functor_multi_pass_t>(void) |
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| 93 | { |
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| 94 | functor_multi_pass_t mpend; |
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| 95 | functor_multi_pass_t mp1 = functor_multi_pass_t(my_functor()); |
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| 96 | |
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| 97 | std::string dummy; |
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| 98 | #ifndef BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS |
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| 99 | dummy.assign(mp1, mpend); |
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| 100 | #else |
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| 101 | copy(mp1, mpend, inserter(dummy, dummy.end())); |
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| 102 | #endif |
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| 103 | } |
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| 104 | |
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| 105 | //////////////////////////////////////////////// |
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| 106 | // Definition of the test suite |
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| 107 | int |
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| 108 | main() |
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| 109 | { |
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| 110 | construct_string_from<default_multi_pass_t>(); |
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| 111 | construct_string_from<fixed_multi_pass_t>(); |
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| 112 | construct_string_from<first_owner_multi_pass_t>(); |
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| 113 | construct_string_from<functor_multi_pass_t>(); |
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| 114 | return boost::report_errors(); |
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| 115 | } |
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