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// Copyright 2015-2019 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 <algorithm>
#include <boost/core/lightweight_test.hpp>
#include <boost/core/lightweight_test_trait.hpp>
#include <boost/histogram/accumulators/weighted_sum.hpp>
#include <boost/histogram/axis/integer.hpp>
#include <boost/histogram/detail/common_type.hpp>
#include <boost/histogram/detail/counting_streambuf.hpp>
#include <boost/histogram/detail/index_translator.hpp>
#include <boost/histogram/detail/nonmember_container_access.hpp>
#include <boost/histogram/detail/span.hpp>
#include <boost/histogram/detail/sub_array.hpp>
#include <boost/histogram/fwd.hpp>
#include <boost/histogram/literals.hpp>
#include <boost/histogram/storage_adaptor.hpp>
#include <boost/histogram/unlimited_storage.hpp>
#include <iostream>
#include <ostream>
#include "std_ostream.hpp"
#include "throw_exception.hpp"
namespace boost {
namespace histogram {
template <std::size_t N>
std::ostream& operator<<(std::ostream& os, const multi_index<N>& mi) {
os << "(";
bool first = true;
for (auto&& x : mi) {
if (!first)
os << " ";
else
first = false;
os << x << ", ";
}
os << ")";
return os;
}
template <std::size_t N, std::size_t M>
bool operator==(const multi_index<N>& a, const multi_index<M>& b) {
return std::equal(a.begin(), a.end(), b.begin(), b.end());
}
} // namespace histogram
} // namespace boost
using namespace boost::histogram;
using namespace boost::histogram::literals;
namespace dtl = boost::histogram::detail;
int main() {
// literals
{
BOOST_TEST_TRAIT_SAME(std::integral_constant<unsigned, 0>, decltype(0_c));
BOOST_TEST_TRAIT_SAME(std::integral_constant<unsigned, 3>, decltype(3_c));
BOOST_TEST_EQ(decltype(10_c)::value, 10);
BOOST_TEST_EQ(decltype(213_c)::value, 213);
}
// common_storage
{
BOOST_TEST_TRAIT_SAME(dtl::common_storage<unlimited_storage<>, unlimited_storage<>>,
unlimited_storage<>);
BOOST_TEST_TRAIT_SAME(
dtl::common_storage<dense_storage<double>, dense_storage<double>>,
dense_storage<double>);
BOOST_TEST_TRAIT_SAME(dtl::common_storage<dense_storage<int>, dense_storage<double>>,
dense_storage<double>);
BOOST_TEST_TRAIT_SAME(dtl::common_storage<dense_storage<double>, dense_storage<int>>,
dense_storage<double>);
BOOST_TEST_TRAIT_SAME(dtl::common_storage<dense_storage<double>, unlimited_storage<>>,
dense_storage<double>);
BOOST_TEST_TRAIT_SAME(dtl::common_storage<dense_storage<int>, unlimited_storage<>>,
unlimited_storage<>);
BOOST_TEST_TRAIT_SAME(dtl::common_storage<dense_storage<double>, weight_storage>,
weight_storage);
}
// size & data
{
char a[4] = {1, 2, 3, 4};
BOOST_TEST_EQ(dtl::size(a), 4u);
BOOST_TEST_EQ(dtl::data(a), a);
auto b = {1, 2};
BOOST_TEST_EQ(dtl::size(b), 2u);
BOOST_TEST_EQ(dtl::data(b), b.begin());
struct C {
unsigned size() const { return 3; }
int* data() { return buf; }
const int* data() const { return buf; }
int buf[1];
} c;
BOOST_TEST_EQ(dtl::size(c), 3u);
BOOST_TEST_EQ(dtl::data(c), c.buf);
BOOST_TEST_EQ(dtl::data(static_cast<const C&>(c)), c.buf);
struct {
int size() const { return 5; }
} d;
BOOST_TEST_EQ(dtl::size(d), 5u);
}
// counting_streambuf
{
std::streamsize count = 0;
dtl::counting_streambuf<char> csb(count);
std::ostream os(&csb);
os.put('x');
BOOST_TEST_EQ(count, 1);
os << 12;
BOOST_TEST_EQ(count, 3);
os << "123";
BOOST_TEST_EQ(count, 6);
}
{
std::streamsize count = 0;
auto g = dtl::make_count_guard(std::cout, count);
std::cout.put('x');
BOOST_TEST_EQ(count, 1);
std::cout << 12;
BOOST_TEST_EQ(count, 3);
std::cout << "123";
BOOST_TEST_EQ(count, 6);
}
// sub_array and span
{
dtl::sub_array<int, 2> a(2, 1);
a[1] = 2;
auto sp = dtl::span<int>(a);
BOOST_TEST_EQ(sp.size(), 2);
BOOST_TEST_EQ(sp.front(), 1);
BOOST_TEST_EQ(sp.back(), 2);
const auto& ca = a;
auto csp = dtl::span<const int>(ca);
BOOST_TEST_EQ(csp.size(), 2);
BOOST_TEST_EQ(csp.front(), 1);
BOOST_TEST_EQ(csp.back(), 2);
}
// index_translator
{
using I = axis::integer<>;
{
auto t = std::vector<I>{I{0, 1}, I{1, 3}};
auto tr = dtl::make_index_translator(t, t);
multi_index<static_cast<std::size_t>(-1)> mi{0, 1};
BOOST_TEST_EQ(tr(mi), mi);
multi_index<2> mi2{0, 1};
BOOST_TEST_EQ(tr(mi2), mi);
}
{
auto t = std::make_tuple(I{0, 1});
auto tr = dtl::make_index_translator(t, t);
multi_index<static_cast<std::size_t>(-1)> mi{0};
BOOST_TEST_EQ(tr(mi), mi);
}
BOOST_TEST_THROWS(multi_index<1>::create(2), std::invalid_argument);
}
return boost::report_errors();
}
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