2017-07-09 09:51:38 +00:00
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#include <iostream>
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2018-02-01 21:20:26 +00:00
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#include <nlohmann/json.hpp>
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2015-06-20 22:59:33 +00:00
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2016-01-30 19:23:14 +00:00
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using json = nlohmann::json;
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2015-06-20 22:59:33 +00:00
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int main()
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{
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// create JSON values
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json j_null;
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json j_boolean = true;
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json j_number_integer = 17;
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2016-01-26 19:07:03 +00:00
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json j_number_unsigned_integer = 12345678987654321u;
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2015-06-20 22:59:33 +00:00
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json j_number_float = 23.42;
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json j_object = {{"one", 1}, {"two", 2}};
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json j_array = {1, 2, 4, 8, 16};
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json j_string = "Hello, world";
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2020-05-17 20:50:27 +00:00
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json j_binary = json::binary_array({1, 2, 3});
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2015-06-20 22:59:33 +00:00
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// call is_null()
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std::cout << std::boolalpha;
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std::cout << j_null.is_null() << '\n';
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std::cout << j_boolean.is_null() << '\n';
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std::cout << j_number_integer.is_null() << '\n';
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2016-01-26 19:07:03 +00:00
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std::cout << j_number_unsigned_integer.is_null() << '\n';
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2015-06-20 22:59:33 +00:00
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std::cout << j_number_float.is_null() << '\n';
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std::cout << j_object.is_null() << '\n';
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std::cout << j_array.is_null() << '\n';
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std::cout << j_string.is_null() << '\n';
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2020-05-17 20:50:27 +00:00
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std::cout << j_binary.is_null() << '\n';
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2015-06-20 22:59:33 +00:00
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}
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