No type named 'invoke_result' in namespace 'std', in react-native-clusterer

[Power51214]

No type named 'invoke_result' in namespace 'std', in react-native-clusterer

[kkureli]

any solution?

[RemRemFromOpt]

I found that the issue is related to the C++ standard version used by your compiler.
The std::invoke_result type trait was introduced in C++17 only.

On Xcode, the selected C++ standard can depend on your minimum iOS deployment target, which means you might be building with an older C++ version where invoke_result does not exist.

I fixed the compilation by replacing std::invoke_result with the older (but deprecated) std::result_of, which works with C++11/14:

In react-native-cluster/cpp/supercluster.hpp:349 :

// using type = typename std::invoke_result<F(V &)>::type;
using type = typename std::result_of<F(V&)>::type;

In react-native-cluster/cpp/supercluster.hpp:362 :

// using type = typename std::invoke_result<F(V &, V &)>::type;
using type = typename std::result_of<F(V&, V&)>::type;

See https://en.cppreference.com/w/cpp/types/result_of.html