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Add front methods to json_pointers (implements #4889) (#5152)

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* Added front, pop_front, and push_front methods to json_pointers in order to facilitate root-to-leaf traversals of JSON object trees. (#4889)

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* undid VS autoformatting in irrelevant code

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* Ran make amalgamate, added navigation to json_pointer's new front methods in mkdocs, and fixed errors in documented complexity for those methods.

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* Fixed GCC 4.8 compile error caused by const iterators

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* Fixed another gcc-4.8 compile error

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

* amalgamated

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>

---------

Signed-off-by: trdesilva <5818730+trdesilva@users.noreply.github.com>
This commit is contained in:
trdesilva
2026-05-13 07:59:16 +02:00
committed by GitHub
parent 216c50365e
commit a0a4e7cc0b
14 changed files with 274 additions and 2 deletions
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docs/mkdocs/docs/examples/json_pointer__pop_front.cpp
+21
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#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// create empty JSON Pointer
json::json_pointer ptr("/foo/bar/baz");
std::cout << "\"" << ptr << "\"\n";
// call pop_front()
ptr.pop_front();
std::cout << "\"" << ptr << "\"\n";
ptr.pop_front();
std::cout << "\"" << ptr << "\"\n";
ptr.pop_front();
std::cout << "\"" << ptr << "\"\n";
}