1 | |
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2 | // (C) Copyright John Maddock 2000. |
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3 | // Use, modification and distribution are subject to the |
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4 | // Boost Software License, Version 1.0. (See accompanying file |
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5 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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6 | |
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7 | // |
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8 | // Simple program to output some template specialisations for the type_traits library. |
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9 | // |
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10 | |
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11 | #include <fstream> |
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12 | |
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13 | using namespace std; |
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14 | |
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15 | unsigned specializations = 30; |
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16 | |
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17 | int main() |
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18 | { |
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19 | unsigned i, j; |
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20 | ofstream os("specialisations"); |
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21 | |
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22 | // |
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23 | // generate is_function tester prototypes: |
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24 | for(i = 0; i <= specializations; ++i) |
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25 | { |
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26 | os << "template <class R"; |
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27 | for(j = 0; j < i; ++j) |
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28 | { |
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29 | os << ", class A" << j; |
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30 | } |
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31 | os << ">\n::boost::type_traits::yes_type is_function_tester(R (*)("; |
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32 | if(i == 0) |
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33 | os << "void"; |
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34 | else |
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35 | { |
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36 | for(j = 0; j < i; ++j) |
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37 | { |
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38 | if(j) os << ", "; |
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39 | os << "A" << j; |
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40 | } |
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41 | } |
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42 | os << "));" << endl; |
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43 | } |
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44 | os << endl << endl; |
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45 | // |
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46 | // generate is_function_helper partial specialisations: |
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47 | // |
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48 | for(i = 0; i < specializations; ++i) |
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49 | { |
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50 | os << "template <class R"; |
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51 | for(j = 0; j < i; ++j) |
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52 | { |
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53 | os << ", class A" << j; |
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54 | } |
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55 | os << ">\nstruct is_function_helper_base<R (*)("; |
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56 | if(i == 0) |
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57 | os << "void"; |
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58 | else |
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59 | { |
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60 | for(j = 0; j < i; ++j) |
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61 | { |
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62 | if(j) os << ", "; |
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63 | os << "A" << j; |
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64 | } |
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65 | } |
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66 | os << ")>{ BOOST_STATIC_CONSTANT(bool, value = true); };" << endl; |
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67 | } |
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68 | os << endl << endl; |
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69 | |
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70 | |
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71 | // |
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72 | // generate is_member_pointer_helper tester prototypes: |
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73 | for(i = 0; i <= specializations; ++i) |
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74 | { |
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75 | os << "template <class R, class T"; |
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76 | for(j = 0; j < i; ++j) |
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77 | { |
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78 | os << ", class A" << j; |
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79 | } |
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80 | os << ">\n::boost::type_traits::yes_type is_member_pointer_helper(R (T::*)("; |
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81 | if(i == 0) |
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82 | os << "void"; |
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83 | else |
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84 | { |
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85 | for(j = 0; j < i; ++j) |
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86 | { |
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87 | if(j) os << ", "; |
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88 | os << "A" << j; |
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89 | } |
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90 | } |
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91 | os << "));" << endl; |
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92 | } |
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93 | os << endl << endl; |
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94 | // |
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95 | // generate is_member_pointer partial specialisations: |
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96 | // |
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97 | for(i = 0; i < specializations; ++i) |
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98 | { |
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99 | os << "template <class R, class T"; |
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100 | for(j = 0; j < i; ++j) |
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101 | { |
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102 | os << ", class A" << j; |
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103 | } |
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104 | os << ">\nstruct is_member_pointer<R (T::*)("; |
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105 | if(i == 0) |
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106 | os << "void"; |
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107 | else |
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108 | { |
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109 | for(j = 0; j < i; ++j) |
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110 | { |
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111 | if(j) os << ", "; |
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112 | os << "A" << j; |
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113 | } |
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114 | } |
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115 | os << ")>{ BOOST_STATIC_CONSTANT(bool, value = true); };" << endl; |
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116 | } |
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117 | os << endl << endl; |
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118 | |
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119 | |
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120 | return 0; |
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121 | } |
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122 | |
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