is_null.cpp
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00001 #include <json.hpp>
00002 
00003 using json = nlohmann::json;
00004 
00005 int main()
00006 {
00007     // create JSON values
00008     json j_null;
00009     json j_boolean = true;
00010     json j_number_integer = 17;
00011     json j_number_unsigned_integer = 12345678987654321u;
00012     json j_number_float = 23.42;
00013     json j_object = {{"one", 1}, {"two", 2}};
00014     json j_array = {1, 2, 4, 8, 16};
00015     json j_string = "Hello, world";
00016 
00017     // call is_null()
00018     std::cout << std::boolalpha;
00019     std::cout << j_null.is_null() << '\n';
00020     std::cout << j_boolean.is_null() << '\n';
00021     std::cout << j_number_integer.is_null() << '\n';
00022     std::cout << j_number_unsigned_integer.is_null() << '\n';
00023     std::cout << j_number_float.is_null() << '\n';
00024     std::cout << j_object.is_null() << '\n';
00025     std::cout << j_array.is_null() << '\n';
00026     std::cout << j_string.is_null() << '\n';
00027 }


rc_visard_driver
Author(s): Heiko Hirschmueller , Christian Emmerich , Felix Ruess
autogenerated on Thu Jun 6 2019 20:43:05