json/doc/examples/insert__range.cpp

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#include <iostream>
#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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int main()
{
// create a JSON array
json v = {1, 2, 3, 4};
// create a JSON array to copy values from
json v2 = {"one", "two", "three", "four"};
// insert range from v2 before the end of array v
auto new_pos = v.insert(v.end(), v2.begin(), v2.end());
// output new array and result of insert call
std::cout << *new_pos << '\n';
std::cout << v << '\n';
}