Aleph::FenwickBinaryOp Concept Reference

Binary operation compatible with Fenwick tree group functors. More...

#include <tpl_fenwick_tree.H>

Concept definition

template<typename F, typename T>
concept Aleph::FenwickBinaryOp = 
      requires(const F& f, const T& a, const T& b)
        {
          { f(a, b) } -> std::convertible_to<T>;
        }

Detailed Description

Binary operation compatible with Fenwick tree group functors.

Requires the functor to be callable with two (logically) immutable values of type T and return a value convertible to T. The functor itself is also required to be callable through a const reference, matching usage from const member functions in Gen_Fenwick_Tree.

Definition at line 103 of file tpl_fenwick_tree.H.