| //===----------------------------------------------------------------------===// |
| // |
| // 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. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <tuple> |
| #include <string> |
| #include <complex> |
| |
| #include <cassert> |
| |
| int main() |
| { |
| #if _LIBCPP_STD_VER > 11 |
| typedef std::complex<float> cf; |
| { |
| auto t1 = std::tuple<int, std::string, cf> { 42, "Hi", { 1,2 }}; |
| assert ( std::get<int>(t1) == 42 ); // find at the beginning |
| assert ( std::get<std::string>(t1) == "Hi" ); // find in the middle |
| assert ( std::get<cf>(t1).real() == 1 ); // find at the end |
| assert ( std::get<cf>(t1).imag() == 2 ); |
| } |
| |
| { |
| auto t2 = std::tuple<int, std::string, int, cf> { 42, "Hi", 23, { 1,2 }}; |
| // get<int> would fail! |
| assert ( std::get<std::string>(t2) == "Hi" ); |
| assert (( std::get<cf>(t2) == cf{ 1,2 } )); |
| } |
| |
| { |
| constexpr std::tuple<int, const int, double, double> p5 { 1, 2, 3.4, 5.6 }; |
| static_assert ( std::get<int>(p5) == 1, "" ); |
| static_assert ( std::get<const int>(p5) == 2, "" ); |
| } |
| |
| { |
| const std::tuple<int, const int, double, double> p5 { 1, 2, 3.4, 5.6 }; |
| const int &i1 = std::get<int>(p5); |
| const int &i2 = std::get<const int>(p5); |
| assert ( i1 == 1 ); |
| assert ( i2 == 2 ); |
| } |
| |
| { |
| typedef std::unique_ptr<int> upint; |
| std::tuple<upint> t(upint(new int(4))); |
| upint p = std::get<upint>(std::move(t)); // get rvalue |
| assert(*p == 4); |
| assert(std::get<0>(t) == nullptr); // has been moved from |
| } |
| |
| #endif |
| } |