39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
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#include "json/json.h"
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#include <iostream>
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#include <memory>
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/**
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* \brief Parse a raw string into Value object using the CharReaderBuilder
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* class, or the legacy Reader class.
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* Example Usage:
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* $g++ readFromString.cpp -ljsoncpp -std=c++11 -o readFromString
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* $./readFromString
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* colin
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* 20
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*/
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int main() {
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const std::string rawJson = R"({"Age": 20, "Name": "colin"})";
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const auto rawJsonLength = static_cast<int>(rawJson.length());
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constexpr bool shouldUseOldWay = false;
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JSONCPP_STRING err;
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Json::Value root;
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if (shouldUseOldWay) {
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Json::Reader reader;
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reader.parse(rawJson, root);
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} else {
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Json::CharReaderBuilder builder;
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const std::unique_ptr<Json::CharReader> reader(builder.newCharReader());
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if (!reader->parse(rawJson.c_str(), rawJson.c_str() + rawJsonLength, &root,
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&err)) {
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std::cout << "error" << std::endl;
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return EXIT_FAILURE;
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}
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}
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const std::string name = root["Name"].asString();
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const int age = root["Age"].asInt();
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std::cout << name << std::endl;
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std::cout << age << std::endl;
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return EXIT_SUCCESS;
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}
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