1 | // Boost.Signals library |
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2 | |
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3 | // Copyright Douglas Gregor 2002-2004. Use, modification and |
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4 | // distribution is subject to the Boost Software License, Version |
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5 | // 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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6 | // http://www.boost.org/LICENSE_1_0.txt) |
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7 | |
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8 | // For more information, see http://www.boost.org |
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9 | |
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10 | #include <boost/test/minimal.hpp> |
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11 | #include <boost/signal.hpp> |
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12 | #include <iostream> |
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13 | #include <vector> |
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14 | #include <algorithm> |
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15 | #include <cstdlib> |
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16 | #include <ctime> |
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17 | |
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18 | std::vector<int> valuesOutput; |
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19 | bool ungrouped1 = false; |
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20 | bool ungrouped2 = false; |
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21 | bool ungrouped3 = false; |
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22 | |
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23 | struct emit_int { |
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24 | emit_int(int v) : value(v) {} |
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25 | |
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26 | void operator()() const |
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27 | { |
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28 | BOOST_CHECK(value == 42 || (!ungrouped1 && !ungrouped2 && !ungrouped3)); |
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29 | valuesOutput.push_back(value); |
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30 | std::cout << value << ' '; |
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31 | } |
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32 | |
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33 | private: |
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34 | int value; |
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35 | }; |
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36 | |
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37 | struct write_ungrouped1 { |
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38 | void operator()() const |
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39 | { |
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40 | BOOST_CHECK(!ungrouped1); |
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41 | ungrouped1 = true; |
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42 | std::cout << "(Ungrouped #1)" << ' '; |
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43 | } |
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44 | }; |
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45 | |
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46 | struct write_ungrouped2 { |
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47 | void operator()() const |
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48 | { |
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49 | BOOST_CHECK(!ungrouped2); |
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50 | ungrouped2 = true; |
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51 | std::cout << "(Ungrouped #2)" << ' '; |
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52 | } |
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53 | }; |
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54 | |
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55 | struct write_ungrouped3 { |
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56 | void operator()() const |
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57 | { |
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58 | BOOST_CHECK(!ungrouped3); |
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59 | ungrouped3 = true; |
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60 | std::cout << "(Ungrouped #3)" << ' '; |
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61 | } |
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62 | }; |
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63 | |
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64 | int test_main(int, char* []) |
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65 | { |
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66 | using namespace std; |
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67 | srand(time(0)); |
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68 | |
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69 | std::vector<int> sortedValues; |
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70 | |
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71 | boost::signal0<void> sig; |
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72 | sig.connect(write_ungrouped1()); |
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73 | for (int i = 0; i < 100; ++i) { |
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74 | #ifdef BOOST_NO_STDC_NAMESPACE |
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75 | int v = rand() % 100; |
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76 | #else |
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77 | int v = std::rand() % 100; |
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78 | #endif |
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79 | sortedValues.push_back(v); |
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80 | sig.connect(v, emit_int(v)); |
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81 | |
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82 | if (i == 50) { |
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83 | sig.connect(write_ungrouped2()); |
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84 | } |
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85 | } |
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86 | sig.connect(write_ungrouped3()); |
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87 | |
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88 | std::sort(sortedValues.begin(), sortedValues.end()); |
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89 | |
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90 | // 17 at beginning, 42 at end |
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91 | sortedValues.insert(sortedValues.begin(), 17); |
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92 | sig.connect(emit_int(17), boost::BOOST_SIGNALS_NAMESPACE::at_front); |
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93 | sortedValues.push_back(42); |
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94 | sig.connect(emit_int(42)); |
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95 | |
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96 | sig(); |
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97 | std::cout << std::endl; |
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98 | |
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99 | BOOST_CHECK(valuesOutput == sortedValues); |
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100 | BOOST_CHECK(ungrouped1); |
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101 | BOOST_CHECK(ungrouped2); |
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102 | BOOST_CHECK(ungrouped3); |
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103 | return 0; |
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104 | } |
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