Commit 48545f5b authored by Niels's avatar Niels

more documentation

parent f1c9aa26
#include <json.hpp>
using namespace nlohmann;
int main()
{
// create values of different floating-point types
float f42 = 42.23;
float f_nan = 1.0f / 0.0f;
double f23 = 23.42;
// create JSON numbers
json j42(f42);
json j_nan(f_nan);
json j23(f23);
// serialize the JSON numbers
std::cout << j42 << '\n';
std::cout << j_nan << '\n';
std::cout << j23 << '\n';
}
#include <json.hpp>
using namespace nlohmann;
int main()
{
// create a string value
std::string s = "The quick brown fox jumps over the lazy dog.";
// create a JSON string value
json j = s;
// serialize the JSON string
std::cout << j << '\n';
}
"The quick brown fox jumps over the lazy dog."
#include <json.hpp>
using namespace nlohmann;
int main()
{
// create JSON values
json j_array = {"alpha", "bravo", "charly", "delta", "easy"};
json j_number = 42;
json j_object = {{"one", "eins"}, {"two", "zwei"}};
// create copies using iterators
json j_array_range(j_array.begin() + 1, j_array.end() - 2);
json j_number_range(j_number.begin(), j_number.end());
json j_object_range(j_object.begin(), j_object.find("two"));
// serialize the values
std::cout << j_array_range << '\n';
std::cout << j_number_range << '\n';
std::cout << j_object_range << '\n';
}
["bravo","charly"]
42
{"one":"eins"}
#include <json.hpp>
using namespace nlohmann;
int main()
{
// create boolean values
json j_truth = true;
json j_falsity = false;
// serialize the JSON booleans
std::cout << j_truth << '\n';
std::cout << j_falsity << '\n';
}
#include <json.hpp>
using namespace nlohmann;
int main()
{
// an anonymous enum
enum { t = 17 };
// create a JSON number from the enum
json j(t);
// serialize the JSON numbers
std::cout << j << '\n';
}
#include <json.hpp>
using namespace nlohmann;
int main()
{
// create stream with serialized JSON
std::stringstream ss;
ss << R"({
"number": 23,
"string": "Hello, world!",
"array": [1, 2, 3, 4, 5],
"boolean": false,
"null": null
})";
// create JSON value and read the serialization from the stream
json j;
j << ss;
// serialize JSON
std::cout << std::setw(2) << j << '\n';
}
{
"array": [
1,
2,
3,
4,
5
],
"boolean": false,
"null": null,
"number": 23,
"string": "Hello, world!"
}
This diff is collapsed.
This diff is collapsed.
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment