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-rw-r--r--src/boost/libs/hana/test/_include/auto/scans.hpp216
1 files changed, 216 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/_include/auto/scans.hpp b/src/boost/libs/hana/test/_include/auto/scans.hpp
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+++ b/src/boost/libs/hana/test/_include/auto/scans.hpp
@@ -0,0 +1,216 @@
+// 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)
+
+#ifndef BOOST_HANA_TEST_AUTO_SCANS_HPP
+#define BOOST_HANA_TEST_AUTO_SCANS_HPP
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/scan_left.hpp>
+#include <boost/hana/scan_right.hpp>
+
+#include <laws/base.hpp>
+#include "test_case.hpp"
+
+
+TestCase test_scan_left{[]{
+ namespace hana = boost::hana;
+ using hana::test::ct_eq;
+
+ struct undefined { };
+ hana::test::_injection<0> f{};
+
+ // Without initial state
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(), undefined{}),
+ MAKE_TUPLE()
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}), undefined{}),
+ MAKE_TUPLE(ct_eq<0>{})
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), f),
+ MAKE_TUPLE(ct_eq<0>{}, f(ct_eq<0>{}, ct_eq<1>{}))
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), f),
+ MAKE_TUPLE(
+ ct_eq<0>{},
+ f(ct_eq<0>{}, ct_eq<1>{}),
+ f(f(ct_eq<0>{}, ct_eq<1>{}), ct_eq<2>{})
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), f),
+ MAKE_TUPLE(
+ ct_eq<0>{},
+ f(ct_eq<0>{}, ct_eq<1>{}),
+ f(f(ct_eq<0>{}, ct_eq<1>{}), ct_eq<2>{}),
+ f(f(f(ct_eq<0>{}, ct_eq<1>{}), ct_eq<2>{}), ct_eq<3>{})
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}), f),
+ MAKE_TUPLE(
+ ct_eq<0>{},
+ f(ct_eq<0>{}, ct_eq<1>{}),
+ f(f(ct_eq<0>{}, ct_eq<1>{}), ct_eq<2>{}),
+ f(f(f(ct_eq<0>{}, ct_eq<1>{}), ct_eq<2>{}), ct_eq<3>{}),
+ f(f(f(f(ct_eq<0>{}, ct_eq<1>{}), ct_eq<2>{}), ct_eq<3>{}), ct_eq<4>{})
+ )
+ ));
+
+ // With initial state
+ auto s = ct_eq<999>{};
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(), s, undefined{}),
+ MAKE_TUPLE(s)
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}), s, f),
+ MAKE_TUPLE(s, f(s, ct_eq<0>{}))
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), s, f),
+ MAKE_TUPLE(s, f(s, ct_eq<0>{}), f(f(s, ct_eq<0>{}), ct_eq<1>{}))
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), s, f),
+ MAKE_TUPLE(
+ s,
+ f(s, ct_eq<0>{}),
+ f(f(s, ct_eq<0>{}), ct_eq<1>{}),
+ f(f(f(s, ct_eq<0>{}), ct_eq<1>{}), ct_eq<2>{})
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), s, f),
+ MAKE_TUPLE(
+ s,
+ f(s, ct_eq<0>{}),
+ f(f(s, ct_eq<0>{}), ct_eq<1>{}),
+ f(f(f(s, ct_eq<0>{}), ct_eq<1>{}), ct_eq<2>{}),
+ f(f(f(f(s, ct_eq<0>{}), ct_eq<1>{}), ct_eq<2>{}), ct_eq<3>{})
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_left(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}), s, f),
+ MAKE_TUPLE(
+ s,
+ f(s, ct_eq<0>{}),
+ f(f(s, ct_eq<0>{}), ct_eq<1>{}),
+ f(f(f(s, ct_eq<0>{}), ct_eq<1>{}), ct_eq<2>{}),
+ f(f(f(f(s, ct_eq<0>{}), ct_eq<1>{}), ct_eq<2>{}), ct_eq<3>{}),
+ f(f(f(f(f(s, ct_eq<0>{}), ct_eq<1>{}), ct_eq<2>{}), ct_eq<3>{}), ct_eq<4>{})
+ )
+ ));
+}};
+
+
+TestCase test_scan_right{[]{
+ namespace hana = boost::hana;
+ using hana::test::ct_eq;
+
+ struct undefined { };
+ hana::test::_injection<0> f{};
+
+ // Without initial state
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(), undefined{}),
+ MAKE_TUPLE()
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}), undefined{}),
+ MAKE_TUPLE(ct_eq<0>{})
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, ct_eq<1>{}),
+ ct_eq<1>{}
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, ct_eq<2>{})),
+ f(ct_eq<1>{}, ct_eq<2>{}),
+ ct_eq<2>{}
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, f(ct_eq<2>{}, ct_eq<3>{}))),
+ f(ct_eq<1>{}, f(ct_eq<2>{}, ct_eq<3>{})),
+ f(ct_eq<2>{}, ct_eq<3>{}),
+ ct_eq<3>{}
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}), f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, f(ct_eq<2>{}, f(ct_eq<3>{}, ct_eq<4>{})))),
+ f(ct_eq<1>{}, f(ct_eq<2>{}, f(ct_eq<3>{}, ct_eq<4>{}))),
+ f(ct_eq<2>{}, f(ct_eq<3>{}, ct_eq<4>{})),
+ f(ct_eq<3>{}, ct_eq<4>{}),
+ ct_eq<4>{}
+ )
+ ));
+
+ // With initial state
+ auto s = ct_eq<999>{};
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(), s, undefined{}),
+ MAKE_TUPLE(s)
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}), s, f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, s),
+ s
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}), s, f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, s)),
+ f(ct_eq<1>{}, s),
+ s
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}), s, f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, f(ct_eq<2>{}, s))),
+ f(ct_eq<1>{}, f(ct_eq<2>{}, s)),
+ f(ct_eq<2>{}, s),
+ s
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}), s, f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, f(ct_eq<2>{}, f(ct_eq<3>{}, s)))),
+ f(ct_eq<1>{}, f(ct_eq<2>{}, f(ct_eq<3>{}, s))),
+ f(ct_eq<2>{}, f(ct_eq<3>{}, s)),
+ f(ct_eq<3>{}, s),
+ s
+ )
+ ));
+ BOOST_HANA_CONSTANT_CHECK(hana::equal(
+ hana::scan_right(MAKE_TUPLE(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{}), s, f),
+ MAKE_TUPLE(
+ f(ct_eq<0>{}, f(ct_eq<1>{}, f(ct_eq<2>{}, f(ct_eq<3>{}, f(ct_eq<4>{}, s))))),
+ f(ct_eq<1>{}, f(ct_eq<2>{}, f(ct_eq<3>{}, f(ct_eq<4>{}, s)))),
+ f(ct_eq<2>{}, f(ct_eq<3>{}, f(ct_eq<4>{}, s))),
+ f(ct_eq<3>{}, f(ct_eq<4>{}, s)),
+ f(ct_eq<4>{}, s),
+ s
+ )
+ ));
+}};
+
+#endif // !BOOST_HANA_TEST_AUTO_SCANS_HPP
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