141 lines
3.1 KiB
C++
141 lines
3.1 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is dual licensed under the MIT and the University of Illinois Open
|
|
// Source Licenses. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <tuple>
|
|
|
|
// template <class... Types> class tuple;
|
|
|
|
// template <class... UTypes> tuple(const tuple<UTypes...>& u);
|
|
|
|
// UNSUPPORTED: c++98, c++03
|
|
|
|
#include <tuple>
|
|
#include <utility>
|
|
#include <string>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
|
|
struct Explicit {
|
|
int value;
|
|
explicit Explicit(int x) : value(x) {}
|
|
};
|
|
|
|
struct Implicit {
|
|
int value;
|
|
Implicit(int x) : value(x) {}
|
|
};
|
|
|
|
struct B
|
|
{
|
|
int id_;
|
|
|
|
explicit B(int i) : id_(i) {}
|
|
};
|
|
|
|
struct D
|
|
: B
|
|
{
|
|
explicit D(int i) : B(i) {}
|
|
};
|
|
|
|
#if TEST_STD_VER > 11
|
|
|
|
struct A
|
|
{
|
|
int id_;
|
|
|
|
constexpr A(int i) : id_(i) {}
|
|
friend constexpr bool operator==(const A& x, const A& y) {return x.id_ == y.id_;}
|
|
};
|
|
|
|
struct C
|
|
{
|
|
int id_;
|
|
|
|
constexpr explicit C(int i) : id_(i) {}
|
|
friend constexpr bool operator==(const C& x, const C& y) {return x.id_ == y.id_;}
|
|
};
|
|
|
|
#endif
|
|
|
|
int main()
|
|
{
|
|
{
|
|
typedef std::tuple<long> T0;
|
|
typedef std::tuple<long long> T1;
|
|
T0 t0(2);
|
|
T1 t1 = t0;
|
|
assert(std::get<0>(t1) == 2);
|
|
}
|
|
#if TEST_STD_VER > 11
|
|
{
|
|
typedef std::tuple<int> T0;
|
|
typedef std::tuple<A> T1;
|
|
constexpr T0 t0(2);
|
|
constexpr T1 t1 = t0;
|
|
static_assert(std::get<0>(t1) == 2, "");
|
|
}
|
|
{
|
|
typedef std::tuple<int> T0;
|
|
typedef std::tuple<C> T1;
|
|
constexpr T0 t0(2);
|
|
constexpr T1 t1{t0};
|
|
static_assert(std::get<0>(t1) == C(2), "");
|
|
}
|
|
#endif
|
|
{
|
|
typedef std::tuple<long, char> T0;
|
|
typedef std::tuple<long long, int> T1;
|
|
T0 t0(2, 'a');
|
|
T1 t1 = t0;
|
|
assert(std::get<0>(t1) == 2);
|
|
assert(std::get<1>(t1) == int('a'));
|
|
}
|
|
{
|
|
typedef std::tuple<long, char, D> T0;
|
|
typedef std::tuple<long long, int, B> T1;
|
|
T0 t0(2, 'a', D(3));
|
|
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);
|
|
typedef std::tuple<long, char, D&> T0;
|
|
typedef std::tuple<long long, int, B&> T1;
|
|
T0 t0(2, 'a', d);
|
|
T1 t1 = t0;
|
|
d.id_ = 2;
|
|
assert(std::get<0>(t1) == 2);
|
|
assert(std::get<1>(t1) == int('a'));
|
|
assert(std::get<2>(t1).id_ == 2);
|
|
}
|
|
{
|
|
typedef std::tuple<long, char, int> T0;
|
|
typedef std::tuple<long long, int, B> T1;
|
|
T0 t0(2, 'a', 3);
|
|
T1 t1(t0);
|
|
assert(std::get<0>(t1) == 2);
|
|
assert(std::get<1>(t1) == int('a'));
|
|
assert(std::get<2>(t1).id_ == 3);
|
|
}
|
|
{
|
|
const std::tuple<int> t1(42);
|
|
std::tuple<Explicit> t2(t1);
|
|
assert(std::get<0>(t2).value == 42);
|
|
}
|
|
{
|
|
const std::tuple<int> t1(42);
|
|
std::tuple<Implicit> t2 = t1;
|
|
assert(std::get<0>(t2).value == 42);
|
|
}
|
|
}
|