// Taken from the Boost.Bind library
//
//  mem_fn_derived_test.cpp - tests mem_fn.hpp with derived objects
//
//  Copyright (c) 2001, 2002 Peter Dimov and Multi Media Ltd.
//  Copyright (c) 2013 Agustin Berge
//
//  SPDX-License-Identifier: BSL-1.0
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//

#include <hpx/config.hpp>

#if defined(HPX_MSVC)
#pragma warning(disable : 4786)    // identifier truncated in debug info
#pragma warning(disable : 4710)    // function not inlined
#pragma warning(                                                               \
    disable : 4711)    // function selected for automatic inline expansion
#pragma warning(disable : 4514)    // unreferenced inline removed
#endif

#include <hpx/functional/mem_fn.hpp>

#include <iostream>
#include <memory>

#include <hpx/modules/testing.hpp>

struct B
{
    mutable unsigned int hash;

    B()
      : hash(0)
    {
    }

    int f0()
    {
        f1(17);
        return 0;
    }
    int g0() const
    {
        g1(17);
        return 0;
    }

    int f1(int a1)
    {
        hash = (hash * 17041 + a1) % 32768;
        return 0;
    }
    int g1(int a1) const
    {
        hash = (hash * 17041 + a1 * 2) % 32768;
        return 0;
    }

    int f2(int a1, int a2)
    {
        f1(a1);
        f1(a2);
        return 0;
    }
    int g2(int a1, int a2) const
    {
        g1(a1);
        g1(a2);
        return 0;
    }

    int f3(int a1, int a2, int a3)
    {
        f2(a1, a2);
        f1(a3);
        return 0;
    }
    int g3(int a1, int a2, int a3) const
    {
        g2(a1, a2);
        g1(a3);
        return 0;
    }

    int f4(int a1, int a2, int a3, int a4)
    {
        f3(a1, a2, a3);
        f1(a4);
        return 0;
    }
    int g4(int a1, int a2, int a3, int a4) const
    {
        g3(a1, a2, a3);
        g1(a4);
        return 0;
    }

    int f5(int a1, int a2, int a3, int a4, int a5)
    {
        f4(a1, a2, a3, a4);
        f1(a5);
        return 0;
    }
    int g5(int a1, int a2, int a3, int a4, int a5) const
    {
        g4(a1, a2, a3, a4);
        g1(a5);
        return 0;
    }

    int f6(int a1, int a2, int a3, int a4, int a5, int a6)
    {
        f5(a1, a2, a3, a4, a5);
        f1(a6);
        return 0;
    }
    int g6(int a1, int a2, int a3, int a4, int a5, int a6) const
    {
        g5(a1, a2, a3, a4, a5);
        g1(a6);
        return 0;
    }

    int f7(int a1, int a2, int a3, int a4, int a5, int a6, int a7)
    {
        f6(a1, a2, a3, a4, a5, a6);
        f1(a7);
        return 0;
    }
    int g7(int a1, int a2, int a3, int a4, int a5, int a6, int a7) const
    {
        g6(a1, a2, a3, a4, a5, a6);
        g1(a7);
        return 0;
    }

    int f8(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
    {
        f7(a1, a2, a3, a4, a5, a6, a7);
        f1(a8);
        return 0;
    }
    int g8(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8) const
    {
        g7(a1, a2, a3, a4, a5, a6, a7);
        g1(a8);
        return 0;
    }
};

struct X : public B
{
};

int main()
{
    X x;

    X const& rcx = x;
    X const* pcx = &x;

    std::shared_ptr<X> sp(new X);

    hpx::mem_fn (&X::f0)(x);
    hpx::mem_fn (&X::f0)(&x);
    hpx::mem_fn (&X::f0)(sp);

    hpx::mem_fn (&X::g0)(x);
    hpx::mem_fn (&X::g0)(rcx);
    hpx::mem_fn (&X::g0)(&x);
    hpx::mem_fn (&X::g0)(pcx);
    hpx::mem_fn (&X::g0)(sp);

    hpx::mem_fn (&X::f1)(x, 1);
    hpx::mem_fn (&X::f1)(&x, 1);
    hpx::mem_fn (&X::f1)(sp, 1);

    hpx::mem_fn (&X::g1)(x, 1);
    hpx::mem_fn (&X::g1)(rcx, 1);
    hpx::mem_fn (&X::g1)(&x, 1);
    hpx::mem_fn (&X::g1)(pcx, 1);
    hpx::mem_fn (&X::g1)(sp, 1);

    hpx::mem_fn (&X::f2)(x, 1, 2);
    hpx::mem_fn (&X::f2)(&x, 1, 2);
    hpx::mem_fn (&X::f2)(sp, 1, 2);

    hpx::mem_fn (&X::g2)(x, 1, 2);
    hpx::mem_fn (&X::g2)(rcx, 1, 2);
    hpx::mem_fn (&X::g2)(&x, 1, 2);
    hpx::mem_fn (&X::g2)(pcx, 1, 2);
    hpx::mem_fn (&X::g2)(sp, 1, 2);

    hpx::mem_fn (&X::f3)(x, 1, 2, 3);
    hpx::mem_fn (&X::f3)(&x, 1, 2, 3);
    hpx::mem_fn (&X::f3)(sp, 1, 2, 3);

    hpx::mem_fn (&X::g3)(x, 1, 2, 3);
    hpx::mem_fn (&X::g3)(rcx, 1, 2, 3);
    hpx::mem_fn (&X::g3)(&x, 1, 2, 3);
    hpx::mem_fn (&X::g3)(pcx, 1, 2, 3);
    hpx::mem_fn (&X::g3)(sp, 1, 2, 3);

    hpx::mem_fn (&X::f4)(x, 1, 2, 3, 4);
    hpx::mem_fn (&X::f4)(&x, 1, 2, 3, 4);
    hpx::mem_fn (&X::f4)(sp, 1, 2, 3, 4);

    hpx::mem_fn (&X::g4)(x, 1, 2, 3, 4);
    hpx::mem_fn (&X::g4)(rcx, 1, 2, 3, 4);
    hpx::mem_fn (&X::g4)(&x, 1, 2, 3, 4);
    hpx::mem_fn (&X::g4)(pcx, 1, 2, 3, 4);
    hpx::mem_fn (&X::g4)(sp, 1, 2, 3, 4);

    hpx::mem_fn (&X::f5)(x, 1, 2, 3, 4, 5);
    hpx::mem_fn (&X::f5)(&x, 1, 2, 3, 4, 5);
    hpx::mem_fn (&X::f5)(sp, 1, 2, 3, 4, 5);

    hpx::mem_fn (&X::g5)(x, 1, 2, 3, 4, 5);
    hpx::mem_fn (&X::g5)(rcx, 1, 2, 3, 4, 5);
    hpx::mem_fn (&X::g5)(&x, 1, 2, 3, 4, 5);
    hpx::mem_fn (&X::g5)(pcx, 1, 2, 3, 4, 5);
    hpx::mem_fn (&X::g5)(sp, 1, 2, 3, 4, 5);

    hpx::mem_fn (&X::f6)(x, 1, 2, 3, 4, 5, 6);
    hpx::mem_fn (&X::f6)(&x, 1, 2, 3, 4, 5, 6);
    hpx::mem_fn (&X::f6)(sp, 1, 2, 3, 4, 5, 6);

    hpx::mem_fn (&X::g6)(x, 1, 2, 3, 4, 5, 6);
    hpx::mem_fn (&X::g6)(rcx, 1, 2, 3, 4, 5, 6);
    hpx::mem_fn (&X::g6)(&x, 1, 2, 3, 4, 5, 6);
    hpx::mem_fn (&X::g6)(pcx, 1, 2, 3, 4, 5, 6);
    hpx::mem_fn (&X::g6)(sp, 1, 2, 3, 4, 5, 6);

    hpx::mem_fn (&X::f7)(x, 1, 2, 3, 4, 5, 6, 7);
    hpx::mem_fn (&X::f7)(&x, 1, 2, 3, 4, 5, 6, 7);
    hpx::mem_fn (&X::f7)(sp, 1, 2, 3, 4, 5, 6, 7);

    hpx::mem_fn (&X::g7)(x, 1, 2, 3, 4, 5, 6, 7);
    hpx::mem_fn (&X::g7)(rcx, 1, 2, 3, 4, 5, 6, 7);
    hpx::mem_fn (&X::g7)(&x, 1, 2, 3, 4, 5, 6, 7);
    hpx::mem_fn (&X::g7)(pcx, 1, 2, 3, 4, 5, 6, 7);
    hpx::mem_fn (&X::g7)(sp, 1, 2, 3, 4, 5, 6, 7);

    hpx::mem_fn (&X::f8)(x, 1, 2, 3, 4, 5, 6, 7, 8);
    hpx::mem_fn (&X::f8)(&x, 1, 2, 3, 4, 5, 6, 7, 8);
    hpx::mem_fn (&X::f8)(sp, 1, 2, 3, 4, 5, 6, 7, 8);

    hpx::mem_fn (&X::g8)(x, 1, 2, 3, 4, 5, 6, 7, 8);
    hpx::mem_fn (&X::g8)(rcx, 1, 2, 3, 4, 5, 6, 7, 8);
    hpx::mem_fn (&X::g8)(&x, 1, 2, 3, 4, 5, 6, 7, 8);
    hpx::mem_fn (&X::g8)(pcx, 1, 2, 3, 4, 5, 6, 7, 8);
    hpx::mem_fn (&X::g8)(sp, 1, 2, 3, 4, 5, 6, 7, 8);

    HPX_TEST_EQ(hpx::mem_fn(&X::hash)(x), 17610u);
    HPX_TEST_EQ(hpx::mem_fn(&X::hash)(sp), 2155u);

    return hpx::util::report_errors();
}
