pairs.by.type.pass.cpp revision e8029e54f1c7cb1f758ef19edb7745fa382fe96c 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include <utility>
11#include <string>
12#include <complex>
13
14#include <cassert>
15
16int main()
17{
18#if _LIBCPP_STD_VER > 11
19    typedef std::complex<float> cf;
20    {
21    auto t1 = std::make_pair<int, cf> ( 42, { 1,2 } );
22    assert ( std::get<int>(t1) == 42 );
23    assert ( std::get<cf>(t1).real() == 1 );
24    assert ( std::get<cf>(t1).imag() == 2 );
25    }
26
27    {
28    const std::pair<int, const int> p1 { 1, 2 };
29    const int &i1 = std::get<int>(p1);
30    const int &i2 = std::get<const int>(p1);
31    assert ( i1 == 1 );
32    assert ( i2 == 2 );
33    }
34
35    {
36    typedef std::unique_ptr<int> upint;
37    std::pair<upint, int> t(upint(new int(4)), 42);
38    upint p = std::get<0>(std::move(t)); // get rvalue
39    assert(*p == 4);
40    assert(std::get<0>(t) == nullptr); // has been moved from
41    }
42
43#endif
44}
45