mirror of
https://github.com/nlohmann/json
synced 2024-12-12 04:20:08 +00:00
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
#include <iostream>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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int main()
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{
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// create JSON values
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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 = "Hellö 😀!";
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// call dump()
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std::cout << "objects:" << '\n'
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<< j_object.dump() << "\n\n"
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<< j_object.dump(-1) << "\n\n"
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<< j_object.dump(0) << "\n\n"
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<< j_object.dump(4) << "\n\n"
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<< j_object.dump(1, '\t') << "\n\n";
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std::cout << "arrays:" << '\n'
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<< j_array.dump() << "\n\n"
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<< j_array.dump(-1) << "\n\n"
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<< j_array.dump(0) << "\n\n"
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<< j_array.dump(4) << "\n\n"
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<< j_array.dump(1, '\t') << "\n\n";
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std::cout << "strings:" << '\n'
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<< j_string.dump() << '\n'
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<< j_string.dump(-1, ' ', true) << '\n';
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// create JSON value with invalid UTF-8 byte sequence
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json j_invalid = "ä\xA9ü";
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try
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{
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std::cout << j_invalid.dump() << std::endl;
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}
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catch (json::type_error& e)
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{
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std::cout << e.what() << std::endl;
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}
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std::cout << "string with replaced invalid characters: "
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<< j_invalid.dump(-1, ' ', false, json::error_handler_t::replace)
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<< "\nstring with ignored invalid characters: "
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<< j_invalid.dump(-1, ' ', false, json::error_handler_t::ignore)
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<< '\n';
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}
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