Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 503 insertions, 0 deletions

diff --git a/src/boost/libs/hana/test/functional.cpp b/src/boost/libs/hana/test/functional.cpp
new file mode 100644
index 000000000..beb5381b8
--- /dev/null
+++ b/src/boost/libs/hana/test/functional.cpp
@@ -0,0 +1,503 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/config.hpp>
+#include <boost/hana/functional.hpp>
+
+#include <laws/base.hpp>
+#include <support/tracked.hpp>
+
+#include <utility>
+namespace hana = boost::hana;
+
+
+template <int i = 0>
+struct nonpod : Tracked {
+    nonpod() : Tracked{i} { }
+};
+
+template <int i = 0>
+struct undefined { };
+
+struct move_only {
+    move_only() = default;
+    move_only(move_only&&) = default;
+    move_only(move_only const&) = delete;
+};
+
+
+int main() {
+    hana::test::_injection<0> f{};
+    hana::test::_injection<1> g{};
+    hana::test::_injection<2> h{};
+    using hana::test::ct_eq;
+
+    // always
+    {
+        auto z = ct_eq<0>{};
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::always(z)(), z
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::always(z)(undefined<1>{}), z
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::always(z)(undefined<1>{}, undefined<2>{}), z
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::always(z)(undefined<1>{}, undefined<2>{}, undefined<3>{}), z
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::always(z)(undefined<1>{}, undefined<2>{}, undefined<3>{}, undefined<4>{}), z
+        ));
+
+        hana::always(z)(nonpod<>{});
+        auto m = hana::always(move_only{})(undefined<1>{}); (void)m;
+    }
+
+    // apply (tested separately)
+    {
+
+    }
+
+    // arg
+    {
+        // moveonly friendliness:
+        move_only z = hana::arg<1>(move_only{}); (void)z;
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<1>(ct_eq<1>{}),
+            ct_eq<1>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<1>(ct_eq<1>{}, undefined<2>{}),
+            ct_eq<1>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<1>(ct_eq<1>{}, undefined<2>{}, undefined<3>{}),
+            ct_eq<1>{}
+        ));
+        hana::arg<1>(nonpod<1>{});
+        hana::arg<1>(nonpod<1>{}, nonpod<2>{});
+
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<2>(undefined<1>{}, ct_eq<2>{}),
+            ct_eq<2>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<2>(undefined<1>{}, ct_eq<2>{}, undefined<3>{}),
+            ct_eq<2>{}
+        ));
+        hana::arg<2>(nonpod<1>{}, nonpod<2>{});
+        hana::arg<2>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{});
+
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<3>(undefined<1>{}, undefined<2>{}, ct_eq<3>{}),
+            ct_eq<3>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<3>(undefined<1>{}, undefined<2>{}, ct_eq<3>{}, undefined<4>{}),
+            ct_eq<3>{}
+        ));
+        hana::arg<3>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{});
+        hana::arg<3>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{});
+
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<4>(undefined<1>{}, undefined<2>{}, undefined<3>{}, ct_eq<4>{}),
+            ct_eq<4>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<4>(undefined<1>{}, undefined<2>{}, undefined<3>{}, ct_eq<4>{}, undefined<5>{}),
+            ct_eq<4>{}
+        ));
+        hana::arg<4>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{});
+        hana::arg<4>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{}, nonpod<5>{});
+
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<5>(undefined<1>{}, undefined<2>{}, undefined<3>{}, undefined<4>{}, ct_eq<5>{}),
+            ct_eq<5>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<5>(undefined<1>{}, undefined<2>{}, undefined<3>{}, undefined<4>{}, ct_eq<5>{}, undefined<6>{}),
+            ct_eq<5>{}
+        ));
+        hana::arg<5>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{}, nonpod<5>{});
+        hana::arg<5>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{}, nonpod<5>{}, nonpod<6>{});
+
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<6>(undefined<1>{}, undefined<2>{}, undefined<3>{}, undefined<4>{}, undefined<5>{}, ct_eq<6>{}),
+            ct_eq<6>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::arg<6>(undefined<1>{}, undefined<2>{}, undefined<3>{}, undefined<4>{}, undefined<5>{}, ct_eq<6>{}, undefined<7>{}),
+            ct_eq<6>{}
+        ));
+        hana::arg<6>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{}, nonpod<5>{}, nonpod<6>{});
+        hana::arg<6>(nonpod<1>{}, nonpod<2>{}, nonpod<3>{}, nonpod<4>{}, nonpod<5>{}, nonpod<6>{}, nonpod<7>{});
+    }
+
+    // compose
+    {
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::compose(f, g)(ct_eq<0>{}),
+            f(g(ct_eq<0>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::compose(f, g)(ct_eq<0>{}, ct_eq<1>{}),
+            f(g(ct_eq<0>{}), ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::compose(f, g)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(g(ct_eq<0>{}), ct_eq<1>{}, ct_eq<2>{})
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::compose(f, g, h)(ct_eq<0>{}),
+            f(g(h(ct_eq<0>{})))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::compose(f, g, h)(ct_eq<0>{}, ct_eq<1>{}),
+            f(g(h(ct_eq<0>{})), ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::compose(f, g, h)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(g(h(ct_eq<0>{})), ct_eq<1>{}, ct_eq<2>{})
+        ));
+
+        auto h = [capture = move_only{}](int) { (void)capture; return 1; };
+        auto i = [](int) { return 1; };
+        hana::compose(std::move(h), i)(1);
+
+        {
+            // Compose move-only functions.
+            auto f = [capture = move_only{}](int) { (void)capture; return 1; };
+            auto g = [capture = move_only{}](int) { (void)capture; return 1; };
+            auto c = hana::compose(std::move(f), std::move(g)); (void)c;
+        }
+    }
+
+    // curry
+    {
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<0>(f)(),
+            f()
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<1>(f)(ct_eq<1>{}),
+            f(ct_eq<1>{})
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<2>(f)(ct_eq<1>{})(ct_eq<2>{}),
+            f(ct_eq<1>{}, ct_eq<2>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<2>(f)(ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<1>{}, ct_eq<2>{})
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(f)(ct_eq<1>{})(ct_eq<2>{})(ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(f)(ct_eq<1>{})(ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(f)(ct_eq<1>{}, ct_eq<2>{})(ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(f)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+
+
+        // Make sure curry is idempotent; this is important because it allows
+        // currying a function in generic contexts where it is unknown whether
+        // the function is already curried.
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<0>(hana::curry<0>(f))(),
+            f()
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<1>(hana::curry<1>(f))(ct_eq<1>{}),
+            f(ct_eq<1>{})
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<2>(hana::curry<2>(f))(ct_eq<1>{})(ct_eq<2>{}),
+            f(ct_eq<1>{}, ct_eq<2>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<2>(hana::curry<2>(f))(ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<1>{}, ct_eq<2>{})
+        ));
+
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(hana::curry<3>(f))(ct_eq<1>{})(ct_eq<2>{})(ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(hana::curry<3>(f))(ct_eq<1>{})(ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(hana::curry<3>(f))(ct_eq<1>{}, ct_eq<2>{})(ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::curry<3>(hana::curry<3>(f))(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+    }
+
+    // demux (tested separately)
+    {
+
+    }
+
+    // fix (tested separately)
+    {
+
+    }
+
+    // flip
+    {
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::flip(f)(ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<2>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::flip(f)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<2>{}, ct_eq<1>{}, ct_eq<3>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::flip(f)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}),
+            f(ct_eq<2>{}, ct_eq<1>{}, ct_eq<3>{}, ct_eq<4>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::flip(f)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}, ct_eq<5>{}),
+            f(ct_eq<2>{}, ct_eq<1>{}, ct_eq<3>{}, ct_eq<4>{}, ct_eq<5>{})
+        ));
+    }
+
+    // id
+    {
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::id(ct_eq<0>{}),
+            ct_eq<0>{}
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::id(ct_eq<1>{}),
+            ct_eq<1>{}
+        ));
+
+        (void)hana::id(move_only{});
+
+        // make sure we don't return a dangling reference
+        auto f = []() -> decltype(auto) { return hana::id(Tracked{1}); };
+        auto z = f(); (void)z;
+    }
+
+    // lockstep (tested separately)
+    {
+
+    }
+
+    // infix
+    {
+        auto g = hana::infix(f);
+
+        // disregard associativity
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            ct_eq<0>{} ^g^ ct_eq<1>{},
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (ct_eq<0>{} ^g)^ ct_eq<1>{},
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            ct_eq<0>{} ^(g^ ct_eq<1>{}),
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+
+        // left partial application
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (ct_eq<0>{}^g)(ct_eq<1>{}),
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (ct_eq<0>{}^g)(ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (ct_eq<0>{}^g)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+
+        // right partial application
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (g^ct_eq<1>{})(ct_eq<0>{}),
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (g^ct_eq<2>{})(ct_eq<0>{}, ct_eq<1>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (g^ct_eq<3>{})(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+
+        // equivalence with the base function
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            g(ct_eq<0>{}, ct_eq<1>{}),
+            f(ct_eq<0>{}, ct_eq<1>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            g(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            g(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
+        ));
+    }
+
+    // on
+    {
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::on(f, g)(),
+            f()
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::on(f, g)(ct_eq<0>{}),
+            f(g(ct_eq<0>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::on(f, g)(ct_eq<0>{}, ct_eq<1>{}),
+            f(g(ct_eq<0>{}), g(ct_eq<1>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::on(f, g)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(g(ct_eq<0>{}), g(ct_eq<1>{}), g(ct_eq<2>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            hana::on(f, g)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(g(ct_eq<0>{}), g(ct_eq<1>{}), g(ct_eq<2>{}), g(ct_eq<3>{}))
+        ));
+
+        // check the infix version
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (f ^hana::on^ g)(),
+            f()
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (f ^hana::on^ g)(ct_eq<0>{}),
+            f(g(ct_eq<0>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (f ^hana::on^ g)(ct_eq<0>{}, ct_eq<1>{}),
+            f(g(ct_eq<0>{}), g(ct_eq<1>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (f ^hana::on^ g)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}),
+            f(g(ct_eq<0>{}), g(ct_eq<1>{}), g(ct_eq<2>{}))
+        ));
+        BOOST_HANA_CONSTANT_CHECK(hana::equal(
+            (f ^hana::on^ g)(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+            f(g(ct_eq<0>{}), g(ct_eq<1>{}), g(ct_eq<2>{}), g(ct_eq<3>{}))
+        ));
+    }
+
+    // overload
+    {
+        // 1 function
+        {
+            auto f = hana::overload([](int) { return ct_eq<1>{}; });
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(int{}), ct_eq<1>{}));
+        }
+
+        // 2 functions
+        {
+            auto f = hana::overload(
+                [](int) { return ct_eq<1>{}; },
+                [](float) { return ct_eq<2>{}; }
+            );
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(int{}), ct_eq<1>{}));
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(float{}), ct_eq<2>{}));
+        }
+
+        // 3 functions
+        {
+            auto f = hana::overload(
+                [](int) { return ct_eq<1>{}; },
+                [](float) { return ct_eq<2>{}; },
+                static_cast<ct_eq<3>(*)(char)>([](char) { return ct_eq<3>{}; })
+            );
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(int{}), ct_eq<1>{}));
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(float{}), ct_eq<2>{}));
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(char{}), ct_eq<3>{}));
+        }
+
+        // 4 functions
+        {
+            auto f = hana::overload(
+                [](int) { return ct_eq<1>{}; },
+                [](float) { return ct_eq<2>{}; },
+                static_cast<ct_eq<3>(*)(char)>([](char) { return ct_eq<3>{}; }),
+                [](auto) { return ct_eq<4>{}; }
+            );
+
+            struct otherwise { };
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(int{}), ct_eq<1>{}));
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(float{}), ct_eq<2>{}));
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(char{}), ct_eq<3>{}));
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(f(otherwise{}), ct_eq<4>{}));
+        }
+
+        // check move-only friendliness for bare functions
+        {
+            void (*g)(move_only) = [](move_only) { };
+            hana::overload(g)(move_only{});
+        }
+
+        // check non-strict matches which require a conversion
+        {
+            struct convertible_to_int { operator int() const { return 1; } };
+            auto f = [](int) { return ct_eq<0>{}; };
+
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(
+                hana::overload(f)(convertible_to_int{}),
+                ct_eq<0>{}
+            ));
+
+            BOOST_HANA_CONSTANT_CHECK(hana::equal(
+                hana::overload(static_cast<ct_eq<0>(*)(int)>(f))(convertible_to_int{}),
+                ct_eq<0>{}
+            ));
+        }
+    }
+
+    // partial (tested separately)
+    {
+
+    }
+
+    // placeholder (tested separately)
+    {
+
+    }
+}