cpp-lazy-stream/include/stream/detail/invoke.h

//
//  invoke.h
//  stream
//
//  Created by Sam Jaffe on 4/2/23.
//

#pragma once

#include <stream/forward.h>

#include <stream/detail/macro.h>

namespace stream::detail {
template <typename F, typename T, typename Proj>
decltype(auto) invoke(F && func, T && t, Proj && proj) {
  return std::invoke(FWD(func), std::invoke(FWD(proj), FWD(t)));
}

template <typename F, typename T1, typename T2, typename Proj1, typename Proj2>
decltype(auto) invoke(F && func, T1 && t1, T2 && t2, Proj1 && proj1,
                      Proj2 && proj2) {
  return std::invoke(FWD(func), std::invoke(FWD(proj1), FWD(t1)),
                     std::invoke(FWD(proj2), FWD(t2)));
}
}

#include <stream/detail/undef.h>