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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