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Diffstat (limited to 'src/boost/libs/histogram/test/deduction_guides_test.cpp')
| -rw-r--r-- | src/boost/libs/histogram/test/deduction_guides_test.cpp | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/src/boost/libs/histogram/test/deduction_guides_test.cpp b/src/boost/libs/histogram/test/deduction_guides_test.cpp new file mode 100644 index 000000000..2bd0f8bcb --- /dev/null +++ b/src/boost/libs/histogram/test/deduction_guides_test.cpp @@ -0,0 +1,145 @@ +// Copyright 2018 Hans Dembinski +// +// 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/core/lightweight_test.hpp> +#include <boost/core/lightweight_test_trait.hpp> +#include <boost/histogram/accumulators/weighted_sum.hpp> +#include <boost/histogram/axis.hpp> +#include <boost/histogram/axis/ostream.hpp> +#include <boost/histogram/histogram.hpp> +#include <boost/histogram/ostream.hpp> +#include <boost/histogram/storage_adaptor.hpp> +#include <boost/histogram/unlimited_storage.hpp> +#include <tuple> +#include <type_traits> +#include <vector> +#include "std_ostream.hpp" +#include "throw_exception.hpp" + +using namespace boost::histogram; +namespace tr = axis::transform; + +// tests requires a C++17 compatible compiler + +#define TEST BOOST_TEST_TRAIT_SAME + +int main() { + using axis::null_type; + + { + using axis::regular; + BOOST_TEST_TRAIT_SAME(decltype(regular(1, 0.0, 1.0)), + regular<double, tr::id, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(regular(1, 0, 1)), regular<double, tr::id, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(regular(1, 0.0f, 1.0f)), + regular<float, tr::id, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(regular(1, 0, 1, 0)), regular<double, tr::id, int>); + BOOST_TEST_TRAIT_SAME(decltype(regular(1, 0.0f, 1.0f, "x")), + regular<float, tr::id, std::string>); + BOOST_TEST_TRAIT_SAME(decltype(regular(tr::sqrt(), 1, 0, 1)), + regular<double, tr::sqrt, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(regular(tr::sqrt(), 1, 0.0f, 1.0f, "x")), + regular<float, tr::sqrt, std::string>); + BOOST_TEST_TRAIT_SAME(decltype(regular(tr::sqrt(), 1, 0, 1, 0)), + regular<double, tr::sqrt, int>); + } + + { + using axis::integer; + BOOST_TEST_TRAIT_SAME(decltype(integer(1, 2)), integer<int, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(integer(1l, 2l)), integer<int, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(integer(1.0, 2.0)), integer<double, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(integer(1.0f, 2.0f)), integer<float, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(integer(1, 2, "foo")), integer<int, std::string>); + BOOST_TEST_TRAIT_SAME(decltype(integer(1, 2, 0)), integer<int, int>); + } + + { + using axis::variable; + BOOST_TEST_TRAIT_SAME(decltype(variable{-1.0f, 1.0f}), variable<float, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(variable{-1, 0, 1, 2}), variable<double, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(variable{-1.0, 1.0}), variable<double, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(variable({-1, 0, 1}, "foo")), + variable<double, std::string>); + BOOST_TEST_TRAIT_SAME(decltype(variable({-1, 1}, 0)), variable<double, int>); + + BOOST_TEST_TRAIT_SAME(decltype(variable(std::vector<int>{{-1, 1}})), + variable<double, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(variable(std::vector<float>{{-1.0f, 1.0f}})), + variable<float, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(variable(std::vector<int>{{-1, 1}}, "foo")), + variable<double, std::string>); + BOOST_TEST_TRAIT_SAME(decltype(variable(std::vector<int>{{-1, 1}}, 0)), + variable<double, int>); + } + + { + using axis::category; + BOOST_TEST_TRAIT_SAME(decltype(category{1, 2}), category<int, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(category{"x", "y"}), category<std::string, null_type>); + BOOST_TEST_TRAIT_SAME(decltype(category({1, 2}, "foo")), category<int, std::string>); + BOOST_TEST_TRAIT_SAME(decltype(category({1, 2}, 0)), category<int, int>); + } + + { + auto h = histogram(axis::regular(3, -1, 1), axis::integer(0, 4)); + BOOST_TEST_TRAIT_SAME(decltype(h), + histogram<std::tuple<axis::regular<double, tr::id, null_type>, + axis::integer<int, null_type>>>); + BOOST_TEST_EQ(h.axis(0), axis::regular(3, -1, 1)); + BOOST_TEST_EQ(h.axis(1), axis::integer(0, 4)); + } + + { + auto h = histogram(std::tuple(axis::regular(3, -1, 1), axis::integer(0, 4)), + weight_storage()); + BOOST_TEST_TRAIT_SAME(decltype(h), + histogram<std::tuple<axis::regular<double, tr::id, null_type>, + axis::integer<int, null_type>>, + weight_storage>); + BOOST_TEST_EQ(h.axis(0), axis::regular(3, -1, 1)); + BOOST_TEST_EQ(h.axis(1), axis::integer(0, 4)); + } + + { + auto a0 = axis::regular(5, 0, 5); + auto a1 = axis::regular(3, -1, 1); + auto axes = {a0, a1}; + auto h = histogram(axes); + BOOST_TEST_TRAIT_SAME( + decltype(h), histogram<std::vector<axis::regular<double, tr::id, null_type>>>); + BOOST_TEST_EQ(h.rank(), 2); + BOOST_TEST_EQ(h.axis(0), a0); + BOOST_TEST_EQ(h.axis(1), a1); + } + + { + auto a0 = axis::regular(5, 0, 5); + auto a1 = axis::regular(3, -1, 1); + auto axes = {a0, a1}; + auto h = histogram(axes, weight_storage()); + BOOST_TEST_TRAIT_SAME( + decltype(h), + histogram<std::vector<axis::regular<double, tr::id, null_type>>, weight_storage>); + BOOST_TEST_EQ(h.rank(), 2); + BOOST_TEST_EQ(h.axis(0), a0); + BOOST_TEST_EQ(h.axis(1), a1); + } + + { + auto a0 = axis::regular(5, 0, 5); + auto a1 = axis::regular(3, -1, 1); + auto axes = std::vector<decltype(a0)>{{a0, a1}}; + auto h = histogram(axes); + BOOST_TEST_TRAIT_SAME( + decltype(h), histogram<std::vector<axis::regular<double, tr::id, null_type>>>); + BOOST_TEST_EQ(h.rank(), 2); + BOOST_TEST_EQ(h.axis(0), a0); + BOOST_TEST_EQ(h.axis(1), a1); + } + + return boost::report_errors(); +} |