In this scenario:
struct Holder {
std::function<void()> f;
};
struct Functor { void operator()(){ /**/ } };
int main() {
Holder = { Functor{} };
//...
Is there a way to later cast f
back to a Functor
type?
The target
member function is std::function
's type-unerasing cast. You'll need to know the target type:
#include <cassert>
#include <functional>
struct Functor { void operator()(){ /**/ } };
int main()
{
std::function<void()> f = Functor();
Functor * p = f.target<Functor>();
assert(p != nullptr);
}
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