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-rw-r--r--src/boost/libs/hof/test/placeholders.cpp813
1 files changed, 813 insertions, 0 deletions
diff --git a/src/boost/libs/hof/test/placeholders.cpp b/src/boost/libs/hof/test/placeholders.cpp
new file mode 100644
index 000000000..352230a8f
--- /dev/null
+++ b/src/boost/libs/hof/test/placeholders.cpp
@@ -0,0 +1,813 @@
+/*=============================================================================
+ Copyright (c) 2017 Paul Fultz II
+ placeholders.cpp
+ 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 <boost/hof/placeholders.hpp>
+#include "test.hpp"
+#include <sstream>
+
+// TODO: Test assign operators
+
+#if BOOST_HOF_HAS_STATIC_TEST_CHECK
+#define BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR constexpr
+#else
+#define BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR
+#endif
+
+struct square
+{
+ template<class T>
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto operator()(T x) const BOOST_HOF_RETURNS(x*x);
+};
+
+#define CHECK_DEFAULT_CONSTRUCTION_OP(op, name) \
+ static_assert(boost::hof::detail::is_default_constructible<boost::hof::operators::name>::value, "Operator not default constructible");
+
+#if BOOST_HOF_HAS_NOEXCEPT_DEDUCTION
+#define PLACEHOLDER_CHECK(...) \
+ BOOST_HOF_STATIC_TEST_CHECK(__VA_ARGS__); \
+ BOOST_HOF_TEST_CHECK(__VA_ARGS__); \
+ static_assert(noexcept(__VA_ARGS__), "noexcept placeholders")
+#else
+#define PLACEHOLDER_CHECK(...) \
+ BOOST_HOF_STATIC_TEST_CHECK(__VA_ARGS__); \
+ BOOST_HOF_TEST_CHECK(__VA_ARGS__)
+#endif
+
+BOOST_HOF_TEST_CASE()
+{
+ static_assert(boost::hof::detail::is_default_constructible<boost::hof::placeholder<1>>::value, "Placeholder not default constructible");
+ static_assert(boost::hof::detail::is_default_constructible<boost::hof::placeholder<2>>::value, "Placeholder not default constructible");
+ static_assert(boost::hof::detail::is_default_constructible<boost::hof::placeholder<3>>::value, "Placeholder not default constructible");
+
+ BOOST_HOF_FOREACH_BINARY_OP(CHECK_DEFAULT_CONSTRUCTION_OP)
+ BOOST_HOF_FOREACH_ASSIGN_OP(CHECK_DEFAULT_CONSTRUCTION_OP)
+ BOOST_HOF_FOREACH_UNARY_OP(CHECK_DEFAULT_CONSTRUCTION_OP)
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ auto simple_print = boost::hof::reveal(std::ref(std::cout) << boost::hof::_);
+ simple_print("Hello");
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ std::stringstream ss;
+ auto simple_print = boost::hof::reveal(std::ref(ss) << boost::hof::_);
+ simple_print("Hello");
+ BOOST_HOF_TEST_CHECK(ss.str() == "Hello");
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ const auto x_square_add = 2 + (4*4);
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_square_add = boost::hof::_1 + boost::hof::lazy(square())(boost::hof::_2);
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_square_add)>::value, "Not copyable");
+#endif
+ PLACEHOLDER_CHECK(f_square_add(2, 4) == x_square_add);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_invoke_2 = boost::hof::_1(3);
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_invoke_2)>::value, "Not copyable");
+#endif
+ PLACEHOLDER_CHECK(f_invoke_2(square()) == 9);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ const auto x_add = 2 + 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_add = boost::hof::_1 + boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_add)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_add)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_add(2, 1) == x_add);
+
+ const auto x_subtract = 2 - 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_subtract = boost::hof::_1 - boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_subtract)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_subtract)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_subtract(2, 1) == x_subtract);
+
+ const auto x_multiply = 2 * 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_multiply = boost::hof::_1 * boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_multiply)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_multiply)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_multiply(2, 1) == x_multiply);
+
+ const auto x_divide = 2 / 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_divide = boost::hof::_1 / boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_divide)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_divide)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_divide(2, 1) == x_divide);
+
+ const auto x_remainder = 2 % 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_remainder = boost::hof::_1 % boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_remainder)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_remainder)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_remainder(2, 1) == x_remainder);
+
+ const auto x_shift_right = 2 >> 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_right = boost::hof::_1 >> boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_right)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_shift_right)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_shift_right(2, 1) == x_shift_right);
+
+ const auto x_shift_left = 2 << 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_left = boost::hof::_1 << boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_left)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_shift_left)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_shift_left(2, 1) == x_shift_left);
+
+ const auto x_greater_than = 2 > 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than = boost::hof::_1 > boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_greater_than)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_greater_than(2, 1) == x_greater_than);
+
+ const auto x_less_than = 2 < 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than = boost::hof::_1 < boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_less_than)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_less_than(2, 1) == x_less_than);
+
+ const auto x_less_than_equal = 2 <= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than_equal = boost::hof::_1 <= boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_less_than_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_less_than_equal(2, 1) == x_less_than_equal);
+
+ const auto x_greater_than_equal = 2 >= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than_equal = boost::hof::_1 >= boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_greater_than_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_greater_than_equal(2, 1) == x_greater_than_equal);
+
+ const auto x_equal = 2 == 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_equal = boost::hof::_1 == boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_equal(2, 1) == x_equal);
+
+ const auto x_not_equal = 2 != 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_equal = boost::hof::_1 != boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_not_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_not_equal(2, 1) == x_not_equal);
+
+ const auto x_bit_and = 2 & 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_and = boost::hof::_1 & boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_and)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_bit_and)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_bit_and(2, 1) == x_bit_and);
+
+ const auto x_xor_ = 2 ^ 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_xor_ = boost::hof::_1 ^ boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_xor_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_xor_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_xor_(2, 1) == x_xor_);
+
+ const auto x_bit_or = 2 | 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_or = boost::hof::_1 | boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_or)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_bit_or)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_bit_or(2, 1) == x_bit_or);
+
+ const auto x_and_ = true && false;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_and_ = boost::hof::_1 && boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_and_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_and_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_and_(true, false) == x_and_);
+
+ const auto x_or_ = true;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_or_ = boost::hof::_1 || boost::hof::_2;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_or_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_or_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_or_(true, false) == x_or_);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+
+ const auto x_not_ = !false;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_ = !boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_not_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_not_(false) == x_not_);
+
+ const auto x_not_0 = !0;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_0 = !boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_0)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_not_0)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_not_0(0) == x_not_0);
+
+ const auto x_compl_ = ~2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_compl_ = ~boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_compl_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_compl_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_compl_(2) == x_compl_);
+
+ const auto x_unary_plus = +2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_unary_plus = +boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_unary_plus)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_unary_plus)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_unary_plus(2) == x_unary_plus);
+
+ const auto x_unary_subtract = -2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_unary_subtract = -boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_unary_subtract)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_unary_subtract)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_unary_subtract(2) == x_unary_subtract);
+
+ const auto x_dereference = 2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_dereference = *boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_dereference)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_dereference)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_dereference(&x_dereference) == x_dereference);
+
+ // TODO: Test BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR increment and decrement
+#ifndef _MSC_VER
+ auto x_increment = 2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_increment = ++boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_increment)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_increment)>::value, "Not default constructible");
+ f_increment(x_increment);
+ BOOST_HOF_TEST_CHECK(x_increment == 3);
+
+ auto x_decrement = 2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_decrement = --boost::hof::_1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_decrement)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_decrement)>::value, "Not default constructible");
+ f_decrement(x_decrement);
+ BOOST_HOF_TEST_CHECK(x_decrement == 1);
+#endif
+
+ // TODO: Test post increment and decrement
+}
+
+
+BOOST_HOF_TEST_CASE()
+{
+ const auto x_add = 2 + 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_add = boost::hof::_ + boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_add)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_add)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_add(2, 1) == x_add);
+
+ const auto x_subtract = 2 - 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_subtract = boost::hof::_ - boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_subtract)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_subtract)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_subtract(2, 1) == x_subtract);
+
+ const auto x_multiply = 2 * 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_multiply = boost::hof::_ * boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_multiply)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_multiply)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_multiply(2, 1) == x_multiply);
+
+ const auto x_divide = 2 / 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_divide = boost::hof::_ / boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_divide)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_divide)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_divide(2, 1) == x_divide);
+
+ const auto x_remainder = 2 % 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_remainder = boost::hof::_ % boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_remainder)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_remainder)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_remainder(2, 1) == x_remainder);
+
+ const auto x_shift_right = 2 >> 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_right = boost::hof::_ >> boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_right)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_shift_right)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_shift_right(2, 1) == x_shift_right);
+
+ const auto x_shift_left = 2 << 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_left = boost::hof::_ << boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_left)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_shift_left)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_shift_left(2, 1) == x_shift_left);
+
+ const auto x_greater_than = 2 > 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than = boost::hof::_ > boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_greater_than)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_greater_than(2, 1) == x_greater_than);
+
+ const auto x_less_than = 2 < 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than = boost::hof::_ < boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_less_than)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_less_than(2, 1) == x_less_than);
+
+ const auto x_less_than_equal = 2 <= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than_equal = boost::hof::_ <= boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_less_than_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_less_than_equal(2, 1) == x_less_than_equal);
+
+ const auto x_greater_than_equal = 2 >= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than_equal = boost::hof::_ >= boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_greater_than_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_greater_than_equal(2, 1) == x_greater_than_equal);
+
+ const auto x_equal = 2 == 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_equal = boost::hof::_ == boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_equal(2, 1) == x_equal);
+
+ const auto x_not_equal = 2 != 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_equal = boost::hof::_ != boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_equal)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_not_equal)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_not_equal(2, 1) == x_not_equal);
+
+ const auto x_bit_and = 2 & 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_and = boost::hof::_ & boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_and)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_bit_and)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_bit_and(2, 1) == x_bit_and);
+
+ const auto x_xor_ = 2 ^ 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_xor_ = boost::hof::_ ^ boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_xor_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_xor_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_xor_(2, 1) == x_xor_);
+
+ const auto x_bit_or = 2 | 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_or = boost::hof::_ | boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_or)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_bit_or)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_bit_or(2, 1) == x_bit_or);
+
+ const auto x_and_ = true && false;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_and_ = boost::hof::_ && boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_and_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_and_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_and_(true, false) == x_and_);
+
+ const auto x_or_ = true;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_or_ = boost::hof::_ || boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_or_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_or_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_or_(true, false) == x_or_);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ const auto x_add = 2 + 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_add = 2 + boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_add)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_add)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_add(1) == x_add);
+
+ const auto x_subtract = 2 - 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_subtract = 2 - boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_subtract)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_subtract)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_subtract(1) == x_subtract);
+
+ const auto x_multiply = 2 * 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_multiply = 2 * boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_multiply)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_multiply)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_multiply(1) == x_multiply);
+
+ const auto x_divide = 2 / 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_divide = 2 / boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_divide)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_divide)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_divide(1) == x_divide);
+
+ const auto x_remainder = 2 % 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_remainder = 2 % boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_remainder)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_remainder)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_remainder(1) == x_remainder);
+
+ const auto x_shift_right = 2 >> 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_right = 2 >> boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_right)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_shift_right)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_shift_right(1) == x_shift_right);
+
+ const auto x_shift_left = 2 << 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_left = 2 << boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_left)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_shift_left)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_shift_left(1) == x_shift_left);
+
+ const auto x_greater_than = 2 > 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than = 2 > boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_greater_than)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_greater_than(1) == x_greater_than);
+
+ const auto x_less_than = 2 < 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than = 2 < boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_less_than)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_less_than(1) == x_less_than);
+
+ const auto x_less_than_equal = 2 <= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than_equal = 2 <= boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_less_than_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_less_than_equal(1) == x_less_than_equal);
+
+ const auto x_greater_than_equal = 2 >= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than_equal = 2 >= boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_greater_than_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_greater_than_equal(1) == x_greater_than_equal);
+
+ const auto x_equal = 2 == 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_equal = 2 == boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_equal(1) == x_equal);
+
+ const auto x_not_equal = 2 != 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_equal = 2 != boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_not_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_not_equal(1) == x_not_equal);
+
+ const auto x_bit_and = 2 & 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_and = 2 & boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_and)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_bit_and)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_bit_and(1) == x_bit_and);
+
+ const auto x_xor_ = 2 ^ 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_xor_ = 2 ^ boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_xor_)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_xor_)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_xor_(1) == x_xor_);
+
+ const auto x_bit_or = 2 | 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_or = 2 | boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_or)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_bit_or)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_bit_or(1) == x_bit_or);
+
+ const auto x_and_ = true && false;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_and_ = true && boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_and_)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_and_)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_and_(false) == x_and_);
+
+ const auto x_or_ = true;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_or_ = true || boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_or_)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_or_)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_or_(false) == x_or_);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+ const auto x_add = 2 + 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_add = boost::hof::_ + 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_add)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_add)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_add(2) == x_add);
+
+ const auto x_subtract = 2 - 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_subtract = boost::hof::_ - 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_subtract)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_subtract)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_subtract(2) == x_subtract);
+
+ const auto x_multiply = 2 * 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_multiply = boost::hof::_ * 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_multiply)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_multiply)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_multiply(2) == x_multiply);
+
+ const auto x_divide = 2 / 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_divide = boost::hof::_ / 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_divide)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_divide)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_divide(2) == x_divide);
+
+ const auto x_remainder = 2 % 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_remainder = boost::hof::_ % 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_remainder)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_remainder)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_remainder(2) == x_remainder);
+
+ const auto x_shift_right = 2 >> 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_right = boost::hof::_ >> 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_right)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_shift_right)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_shift_right(2) == x_shift_right);
+
+ const auto x_shift_left = 2 << 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_shift_left = boost::hof::_ << 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_shift_left)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_shift_left)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_shift_left(2) == x_shift_left);
+
+ const auto x_greater_than = 2 > 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than = boost::hof::_ > 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_greater_than)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_greater_than(2) == x_greater_than);
+
+ const auto x_less_than = 2 < 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than = boost::hof::_ < 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_less_than)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_less_than(2) == x_less_than);
+
+ const auto x_less_than_equal = 2 <= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_less_than_equal = boost::hof::_ <= 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_less_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_less_than_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_less_than_equal(2) == x_less_than_equal);
+
+ const auto x_greater_than_equal = 2 >= 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_greater_than_equal = boost::hof::_ >= 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_greater_than_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_greater_than_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_greater_than_equal(2) == x_greater_than_equal);
+
+ const auto x_equal = 2 == 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_equal = boost::hof::_ == 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_equal(2) == x_equal);
+
+ const auto x_not_equal = 2 != 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_equal = boost::hof::_ != 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_equal)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_not_equal)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_not_equal(2) == x_not_equal);
+
+ const auto x_bit_and = 2 & 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_and = boost::hof::_ & 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_and)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_bit_and)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_bit_and(2) == x_bit_and);
+
+ const auto x_xor_ = 2 ^ 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_xor_ = boost::hof::_ ^ 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_xor_)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_xor_)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_xor_(2) == x_xor_);
+
+ const auto x_bit_or = 2 | 1;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_bit_or = boost::hof::_ | 1;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_bit_or)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_bit_or)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_bit_or(2) == x_bit_or);
+
+ const auto x_and_ = true && false;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_and_ = boost::hof::_ && false;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_and_)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_and_)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_and_(true) == x_and_);
+
+ const auto x_or_ = true;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_or_ = boost::hof::_ || false;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_or_)>::value, "Not copyable");
+#endif
+ static_assert(!boost::hof::detail::is_default_constructible<decltype(f_or_)>::value, "default constructible");
+ PLACEHOLDER_CHECK(f_or_(true) == x_or_);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+
+ const auto x_not_ = !false;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_not_ = !boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_not_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_not_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_not_(false) == x_not_);
+
+ const auto x_compl_ = ~2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_compl_ = ~boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_compl_)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_compl_)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_compl_(2) == x_compl_);
+
+ const auto x_unary_plus = +2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_unary_plus = +boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_unary_plus)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_unary_plus)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_unary_plus(2) == x_unary_plus);
+
+ const auto x_unary_subtract = -2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_unary_subtract = -boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_unary_subtract)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_unary_subtract)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_unary_subtract(2) == x_unary_subtract);
+
+ const auto x_dereference = 2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_dereference = *boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_dereference)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_dereference)>::value, "Not default constructible");
+ PLACEHOLDER_CHECK(f_dereference(&x_dereference) == x_dereference);
+
+ // TODO: Test constexpr increment and decrement
+#ifndef _MSC_VER
+ auto x_increment = 2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_increment = ++boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_increment)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_increment)>::value, "Not default constructible");
+ f_increment(x_increment);
+ BOOST_HOF_TEST_CHECK(x_increment == 3);
+
+ auto x_decrement = 2;
+ BOOST_HOF_PLACEHOLDER_TEST_CONSTEXPR auto f_decrement = --boost::hof::_;
+#if defined(__GNUC__) && !defined (__clang__) && __GNUC__ == 4 && __GNUC_MINOR__ > 6
+ static_assert(std::is_copy_constructible<decltype(f_decrement)>::value, "Not copyable");
+#endif
+ static_assert(boost::hof::detail::is_default_constructible<decltype(f_decrement)>::value, "Not default constructible");
+ f_decrement(x_decrement);
+ BOOST_HOF_TEST_CHECK(x_decrement == 1);
+#endif
+
+ // TODO: Test post increment and decrement
+}
+