25 lines
751 B
C++
25 lines
751 B
C++
#include <iostream>
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#include <string>
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#include <nlohmann/json_view.hpp>
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using json_document = nlohmann::json_document;
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int main()
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{
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std::cout << std::boolalpha;
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std::string text = R"({"a": 1})";
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// borrowed: the document only points into `text`; `text` must outlive it
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json_document borrowed = json_document::parse(text);
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std::cout << borrowed.owns_source() << '\n';
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// owned: parse_copy() always takes its own copy
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json_document copied = json_document::parse_copy(text);
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std::cout << copied.owns_source() << '\n';
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// owned: an rvalue std::string is moved in, not copied, but still owned
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json_document moved_in = json_document::parse(std::string(text));
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std::cout << moved_in.owns_source() << '\n';
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}
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