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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <tuple>
// template <class... Types> class tuple;
// template <class... UTypes>
// tuple& operator=(const tuple<UTypes...>& u);
#include <tuple>
#include <string>
#include <cassert>
struct B
{
int id_;
explicit B(int i = 0) : id_(i) {}
};
struct D
: B
{
explicit D(int i = 0) : B(i) {}
};
int main()
{
{
typedef std::tuple<double> T0;
typedef std::tuple<int> T1;
T0 t0(2.5);
T1 t1;
t1 = t0;
assert(std::get<0>(t1) == 2);
}
{
typedef std::tuple<double, char> T0;
typedef std::tuple<int, int> T1;
T0 t0(2.5, 'a');
T1 t1;
t1 = t0;
assert(std::get<0>(t1) == 2);
assert(std::get<1>(t1) == int('a'));
}
{
typedef std::tuple<double, char, D> T0;
typedef std::tuple<int, int, B> T1;
T0 t0(2.5, 'a', D(3));
T1 t1;
t1 = t0;
assert(std::get<0>(t1) == 2);
assert(std::get<1>(t1) == int('a'));
assert(std::get<2>(t1).id_ == 3);
}
{
D d(3);
D d2(2);
typedef std::tuple<double, char, D&> T0;
typedef std::tuple<int, int, B&> T1;
T0 t0(2.5, 'a', d2);
T1 t1(1.5, 'b', d);
t1 = t0;
assert(std::get<0>(t1) == 2);
assert(std::get<1>(t1) == int('a'));
assert(std::get<2>(t1).id_ == 2);
}
}
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