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nlohmann
81 lines
1.7 KiB
Markdown
81 lines
1.7 KiB
Markdown
# nlohmann::json_pointer::operator/
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```
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// (1)
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json_pointer operator/(const json_pointer& lhs, const json_pointer& rhs);
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// (2)
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json_pointer operator/(const json_pointer& lhs, string_t token);
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// (3)
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json_pointer operator/(const json_pointer& lhs, std::size_t array_idx);
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```
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1. create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer
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1. create a new JSON pointer by appending the unescaped token at the end of the JSON pointer
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1. create a new JSON pointer by appending the array-index-token at the end of the JSON pointer
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## Parameters
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`lhs` (in) : JSON pointer
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`rhs` (in) : JSON pointer to append
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`token` (in) : reference token to append
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`array_idx` (in) : array index to append
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## Return value
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1. a new JSON pointer with `rhs` appended to `lhs`
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1. a new JSON pointer with unescaped `token` appended to `lhs`
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1. a new JSON pointer with `array_idx` appended to `lhs`
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## Complexity
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1. Linear in the length of `lhs` and `rhs`.
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1. Linear in the length of `lhs`.
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1. Linear in the length of `lhs`.
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## Examples
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Example
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The example shows the usage of `operator/`.
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```
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#include <iostream>
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#include <nlohmann/json.hpp>
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using json = nlohmann::json;
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int main()
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{
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// create a JSON pointer
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json::json_pointer ptr("/foo");
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// append a JSON Pointer
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std::cout << "\"" << ptr / json::json_pointer("/bar/baz") << "\"\n";
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// append a string
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std::cout << "\"" << ptr / "fob" << "\"\n";
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// append an array index
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std::cout << "\"" << ptr / 42 << "\"" << std::endl;
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}
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```
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Output:
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```
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"/foo/bar/baz"
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"/foo/fob"
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"/foo/42"
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```
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## Version history
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1. Added in version 3.6.0.
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1. Added in version 3.6.0. Changed type of `token` to `string_t` in version 3.11.0.
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1. Added in version 3.6.0.
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