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nlohmann
2026-09-25 01:23:44 +00:00
parent dbc831a330
commit 1374e776a3
270 changed files with 604 additions and 531 deletions
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@@ -22,6 +22,10 @@ Implicit conversions will be switched off by default in the next major release o
You can prepare existing code by already defining `JSON_USE_IMPLICIT_CONVERSIONS` to `0` and replace any implicit conversions with calls to [`get`](https://json.nlohmann.me/api/basic_json/get/index.md).
Automatic migration
The community-maintained clang-tidy check `modernize-nlohmann-json-explicit-conversions` rewrites implicit conversions into explicit calls to [`get`](https://json.nlohmann.me/api/basic_json/get/index.md); for example, `int i = j;` becomes `int i = j.get<int>();`. The check is not part of clang-tidy itself, and it does not catch every case (for example, constructing a `std::optional` from a JSON value), so review the result. See [discussion #4610](https://github.com/nlohmann/json/discussions/4610) for how to build and use it.
CMake option
Implicit conversions can also be controlled with the CMake option [`JSON_ImplicitConversions`](https://json.nlohmann.me/integration/cmake/#json_implicitconversions) (`ON` by default) which defines `JSON_USE_IMPLICIT_CONVERSIONS` accordingly.