0

I need an array of void(*relay)(void) functions which will be used as callback relays for a library which only accepts stateless void(*f)(void) callbacks. The relays will then call the actual std::function callbacks.

There is a nice solution here https://stackoverflow.com/a/63730185/1842762 which works for c++17:

std::function<void(void)> cb[nrOfRelays]; // nrOfRelays is a compile time constant

template <std::size_t ...I>
constexpr std::array<void(*)(), nrOfRelays> MakeRelays(std::index_sequence<I...>)
{
    return std::array<void(*)(), nrOfRelays>{[]{cb[I]();}...};
}

constexpr auto relays = MakeRelays(std::make_index_sequence<nrOfRelays>{});

Question: Is it possible to implement something similar for c++11? (c++11 doesn't have std::index_sequence<I...>)

Improve this question
2
Related questions
7
array of pointers as function parameter
6
How to create array of functions dynamically?
1
declare an array of N pointers to functions returning pointers to functions returning pointers to characters
Load 7 more related questions Show fewer related questions

0

Reset to default

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.