mirror of
https://github.com/nlohmann/json.git
synced 2024-11-24 06:29:03 +08:00
31 lines
961 B
C++
31 lines
961 B
C++
#include <iostream>
|
|
#include <nlohmann/json.hpp>
|
|
|
|
using json = nlohmann::json;
|
|
|
|
int main()
|
|
{
|
|
// create JSON values
|
|
json j_null;
|
|
json j_boolean = true;
|
|
json j_number_integer = 17;
|
|
json j_number_float = 23.42;
|
|
json j_number_unsigned_integer = 12345678987654321u;
|
|
json j_object = {{"one", 1}, {"two", 2}};
|
|
json j_array = {1, 2, 4, 8, 16};
|
|
json j_string = "Hello, world";
|
|
json j_binary = json::binary({1, 2, 3});
|
|
|
|
// call is_string()
|
|
std::cout << std::boolalpha;
|
|
std::cout << j_null.is_string() << '\n';
|
|
std::cout << j_boolean.is_string() << '\n';
|
|
std::cout << j_number_integer.is_string() << '\n';
|
|
std::cout << j_number_unsigned_integer.is_string() << '\n';
|
|
std::cout << j_number_float.is_string() << '\n';
|
|
std::cout << j_object.is_string() << '\n';
|
|
std::cout << j_array.is_string() << '\n';
|
|
std::cout << j_string.is_string() << '\n';
|
|
std::cout << j_binary.is_string() << '\n';
|
|
}
|