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nlohmannjson/doc/examples/operator__lessequal.cpp

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#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create several JSON values
json array_1 = {1, 2, 3};
json array_2 = {1, 2, 4};
json object_1 = {{"A", "a"}, {"B", "b"}};
json object_2 = {{"B", "b"}, {"A", "a"}};
json number_1 = 17;
json number_2 = 17.0000000000001L;
json string_1 = "foo";
json string_2 = "bar";
// output values and comparisons
std::cout << std::boolalpha;
std::cout << array_1 << " <= " << array_2 << " " << (array_1 <= array_2) << '\n';
std::cout << object_1 << " <= " << object_2 << " " << (object_1 <= object_2) << '\n';
std::cout << number_1 << " <= " << number_2 << " " << (number_1 <= number_2) << '\n';
std::cout << string_1 << " <= " << string_2 << " " << (string_1 <= string_2) << '\n';
}