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41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
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#include <compare>
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#include <iostream>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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const char* to_string(const std::partial_ordering& po)
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{
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if (std::is_lt(po))
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{
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return "less";
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}
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else if (std::is_gt(po))
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{
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return "greater";
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}
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else if (std::is_eq(po))
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{
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return "equivalent";
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}
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return "unordered";
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}
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int main()
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{
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// create several JSON values
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json array_1 = {1, 2, 3};
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json array_2 = {1, 2, 4};
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json object_1 = {{"A", "a"}, {"B", "b"}};
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json object_2 = {{"B", "b"}, {"A", "a"}};
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json number = 17;
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json string = "foo";
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json discarded = json(json::value_t::discarded);
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// output values and comparisons
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std::cout << array_1 << " <=> " << array_2 << " := " << to_string(array_1 <=> array_2) << '\n'; // *NOPAD*
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std::cout << object_1 << " <=> " << object_2 << " := " << to_string(object_1 <=> object_2) << '\n'; // *NOPAD*
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std::cout << string << " <=> " << number << " := " << to_string(string <=> number) << '\n'; // *NOPAD*
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std::cout << string << " <=> " << discarded << " := " << to_string(string <=> discarded) << '\n'; // *NOPAD*
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}
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