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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/hana/test/repeat.cpp
parentInitial commit. (diff)
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Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/src/boost/libs/hana/test/repeat.cpp b/src/boost/libs/hana/test/repeat.cpp
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+// 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/fwd/concept/integral_constant.hpp>
+#include <boost/hana/repeat.hpp>
+namespace hana = boost::hana;
+
+
+//////////////////////////////////////////////////////////////////////////////
+// Define a simple model of IntegralConstant for use below
+template <int i>
+struct constant {
+ static constexpr int value = i;
+ using value_type = int;
+};
+
+namespace boost { namespace hana {
+ template <int i>
+ struct IntegralConstant<constant<i>> {
+ static constexpr bool value = true;
+ };
+
+ // definition of `to<>` omitted
+}}
+//////////////////////////////////////////////////////////////////////////////
+
+void function() { }
+
+int main() {
+ int counter = 0;
+ hana::repeat(constant<3>{}, [&] { ++counter; });
+ BOOST_HANA_RUNTIME_CHECK(counter == 3);
+
+ // Try with a normal function.
+ hana::repeat(constant<3>{}, function);
+
+ // Try with a function pointer.
+ hana::repeat(constant<3>{}, static_cast<void(*)()>(function));
+
+ // Make sure we don't read from a non-constexpr variable.
+ constant<3> three{};
+ hana::repeat(three, []{});
+}