forked from nlohmann/json
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathcontains_json_pointer.cpp
More file actions
45 lines (40 loc) · 1.16 KB
/
contains_json_pointer.cpp
File metadata and controls
45 lines (40 loc) · 1.16 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create a JSON value
json j =
{
{"number", 1}, {"string", "foo"}, {"array", {1, 2}}
};
std::cout << std::boolalpha
<< j.contains("/number"_json_pointer) << '\n'
<< j.contains("/string"_json_pointer) << '\n'
<< j.contains("/string"_json_pointer) << '\n'
<< j.contains("/array"_json_pointer) << '\n'
<< j.contains("/array/1"_json_pointer) << '\n'
<< j.contains("/array/-"_json_pointer) << '\n'
<< j.contains("/array/4"_json_pointer) << '\n'
<< j.contains("/baz"_json_pointer) << std::endl;
// out_of_range.106
try
{
// try to use an array index with leading '0'
j.contains("/array/01"_json_pointer);
}
catch (json::parse_error& e)
{
std::cout << e.what() << '\n';
}
// out_of_range.109
try
{
// try to use an array index that is not a number
j.contains("/array/one"_json_pointer);
}
catch (json::parse_error& e)
{
std::cout << e.what() << '\n';
}
}