1 | /* Boost interval/compare/tribool.hpp template implementation file |
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2 | * |
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3 | * Copyright 2002-2003 Guillaume Melquiond |
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4 | * |
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5 | * Distributed under the Boost Software License, Version 1.0. |
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6 | * (See accompanying file LICENSE_1_0.txt or |
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7 | * copy at http://www.boost.org/LICENSE_1_0.txt) |
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8 | */ |
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9 | |
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10 | #ifndef BOOST_NUMERIC_INTERVAL_COMPARE_TRIBOOL_HPP |
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11 | #define BOOST_NUMERIC_INTERVAL_COMPARE_TRIBOOL_HPP |
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12 | |
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13 | #include <boost/numeric/interval/detail/interval_prototype.hpp> |
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14 | #include <boost/numeric/interval/detail/test_input.hpp> |
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15 | #include <boost/logic/tribool.hpp> |
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16 | |
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17 | namespace boost { |
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18 | namespace numeric { |
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19 | namespace interval_lib { |
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20 | namespace compare { |
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21 | namespace tribool { |
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22 | |
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23 | template<class T, class Policies1, class Policies2> inline |
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24 | logic::tribool operator<(const interval<T, Policies1>& x, const interval<T, Policies2>& y) |
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25 | { |
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26 | if (detail::test_input(x, y)) throw comparison_error(); |
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27 | if (x.upper() < y.lower()) return true; |
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28 | if (x.lower() >= y.upper()) return false; |
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29 | return logic::indeterminate; |
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30 | } |
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31 | |
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32 | template<class T, class Policies> inline |
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33 | logic::tribool operator<(const interval<T, Policies>& x, const T& y) |
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34 | { |
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35 | if (detail::test_input(x, y)) throw comparison_error(); |
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36 | if (x.upper() < y) return true; |
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37 | if (x.lower() >= y) return false; |
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38 | return logic::indeterminate; |
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39 | } |
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40 | |
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41 | template<class T, class Policies1, class Policies2> inline |
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42 | logic::tribool operator<=(const interval<T, Policies1>& x, const interval<T, Policies2>& y) |
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43 | { |
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44 | if (detail::test_input(x, y)) throw comparison_error(); |
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45 | if (x.upper() <= y.lower()) return true; |
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46 | if (x.lower() > y.upper()) return false; |
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47 | return logic::indeterminate; |
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48 | } |
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49 | |
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50 | template<class T, class Policies> inline |
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51 | logic::tribool operator<=(const interval<T, Policies>& x, const T& y) |
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52 | { |
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53 | if (detail::test_input(x, y)) throw comparison_error(); |
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54 | if (x.upper() <= y) return true; |
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55 | if (x.lower() > y) return false; |
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56 | return logic::indeterminate; |
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57 | } |
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58 | |
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59 | template<class T, class Policies1, class Policies2> inline |
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60 | logic::tribool operator>(const interval<T, Policies1>& x, const interval<T, Policies2>& y) |
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61 | { |
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62 | if (detail::test_input(x, y)) throw comparison_error(); |
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63 | if (x.lower() > y.upper()) return true; |
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64 | if (x.upper() <= y.lower()) return false; |
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65 | return logic::indeterminate; |
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66 | } |
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67 | |
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68 | template<class T, class Policies> inline |
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69 | logic::tribool operator>(const interval<T, Policies>& x, const T& y) |
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70 | { |
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71 | if (detail::test_input(x, y)) throw comparison_error(); |
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72 | if (x.lower() > y) return true; |
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73 | if (x.upper() <= y) return false; |
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74 | return logic::indeterminate; |
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75 | } |
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76 | |
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77 | template<class T, class Policies1, class Policies2> inline |
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78 | logic::tribool operator>=(const interval<T, Policies1>& x, const interval<T, Policies2>& y) |
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79 | { |
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80 | if (detail::test_input(x, y)) throw comparison_error(); |
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81 | if (x.lower() >= y.upper()) return true; |
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82 | if (x.upper() < y.lower()) return false; |
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83 | return logic::indeterminate; |
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84 | } |
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85 | |
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86 | template<class T, class Policies> inline |
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87 | logic::tribool operator>=(const interval<T, Policies>& x, const T& y) |
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88 | { |
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89 | if (detail::test_input(x, y)) throw comparison_error(); |
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90 | if (x.lower() >= y) return true; |
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91 | if (x.upper() < y) return false; |
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92 | return logic::indeterminate; |
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93 | } |
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94 | |
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95 | template<class T, class Policies1, class Policies2> inline |
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96 | logic::tribool operator==(const interval<T, Policies1>& x, const interval<T, Policies2>& y) |
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97 | { |
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98 | if (detail::test_input(x, y)) throw comparison_error(); |
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99 | if (x.upper() == y.lower() && x.lower() == y.upper()) return true; |
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100 | if (x.upper() < y.lower() || x.lower() > y.upper()) return false; |
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101 | return logic::indeterminate; |
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102 | } |
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103 | |
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104 | template<class T, class Policies> inline |
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105 | logic::tribool operator==(const interval<T, Policies>& x, const T& y) |
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106 | { |
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107 | if (detail::test_input(x, y)) throw comparison_error(); |
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108 | if (x.upper() == y && x.lower() == y) return true; |
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109 | if (x.upper() < y || x.lower() > y) return false; |
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110 | return logic::indeterminate; |
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111 | } |
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112 | |
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113 | template<class T, class Policies1, class Policies2> inline |
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114 | logic::tribool operator!=(const interval<T, Policies1>& x, const interval<T, Policies2>& y) |
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115 | { |
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116 | if (detail::test_input(x, y)) throw comparison_error(); |
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117 | if (x.upper() < y.lower() || x.lower() > y.upper()) return true; |
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118 | if (x.upper() == y.lower() && x.lower() == y.upper()) return false; |
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119 | return logic::indeterminate; |
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120 | } |
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121 | |
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122 | template<class T, class Policies> inline |
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123 | logic::tribool operator!=(const interval<T, Policies>& x, const T& y) |
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124 | { |
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125 | if (detail::test_input(x, y)) throw comparison_error(); |
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126 | if (x.upper() < y || x.lower() > y) return true; |
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127 | if (x.upper() == y && x.lower() == y) return false; |
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128 | return logic::indeterminate; |
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129 | } |
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130 | |
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131 | } // namespace tribool |
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132 | } // namespace compare |
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133 | } // namespace interval_lib |
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134 | } // namespace numeric |
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135 | } // namespace boost |
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136 | |
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137 | |
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138 | #endif // BOOST_NUMERIC_INTERVAL_COMPARE_TRIBOOL_HPP |
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