1e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow//===----------------------------------------------------------------------===// 2e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// 3e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// The LLVM Compiler Infrastructure 4e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// 5e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// This file is dual licensed under the MIT and the University of Illinois Open 6e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// Source Licenses. See LICENSE.TXT for details. 7e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// 8e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow//===----------------------------------------------------------------------===// 9e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 105cb52824fc2a0caf233311e91d9a2a53368f04adDan Albert// UNSUPPORTED: c++98, c++03, c++11 115cb52824fc2a0caf233311e91d9a2a53368f04adDan Albert 12e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow#include <tuple> 13e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow#include <string> 14e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow#include <complex> 15e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 16e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow#include <cassert> 17e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 18e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clowint main() 19e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow{ 20e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow#if _LIBCPP_STD_VER > 11 21e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow typedef std::complex<float> cf; 22e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow { 23e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow auto t1 = std::tuple<int, std::string, cf> { 42, "Hi", { 1,2 }}; 24e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( std::get<int>(t1) == 42 ); // find at the beginning 25e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( std::get<std::string>(t1) == "Hi" ); // find in the middle 26e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( std::get<cf>(t1).real() == 1 ); // find at the end 27e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( std::get<cf>(t1).imag() == 2 ); 28e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow } 29e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 30e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow { 31e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow auto t2 = std::tuple<int, std::string, int, cf> { 42, "Hi", 23, { 1,2 }}; 32e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow// get<int> would fail! 33e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( std::get<std::string>(t2) == "Hi" ); 34e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert (( std::get<cf>(t2) == cf{ 1,2 } )); 35e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow } 36e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 37e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow { 38da0a0e8a1be285d18870955cffc1b51982675dd8Marshall Clow constexpr std::tuple<int, const int, double, double> p5 { 1, 2, 3.4, 5.6 }; 39da0a0e8a1be285d18870955cffc1b51982675dd8Marshall Clow static_assert ( std::get<int>(p5) == 1, "" ); 40da0a0e8a1be285d18870955cffc1b51982675dd8Marshall Clow static_assert ( std::get<const int>(p5) == 2, "" ); 41da0a0e8a1be285d18870955cffc1b51982675dd8Marshall Clow } 42da0a0e8a1be285d18870955cffc1b51982675dd8Marshall Clow 43da0a0e8a1be285d18870955cffc1b51982675dd8Marshall Clow { 44e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow const std::tuple<int, const int, double, double> p5 { 1, 2, 3.4, 5.6 }; 45e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow const int &i1 = std::get<int>(p5); 46e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow const int &i2 = std::get<const int>(p5); 47e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( i1 == 1 ); 48e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert ( i2 == 2 ); 49e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow } 50e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 51e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow { 52e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow typedef std::unique_ptr<int> upint; 53e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow std::tuple<upint> t(upint(new int(4))); 54e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow upint p = std::get<upint>(std::move(t)); // get rvalue 55e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert(*p == 4); 56e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow assert(std::get<0>(t) == nullptr); // has been moved from 57e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow } 58e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow 59e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow#endif 60e8029e54f1c7cb1f758ef19edb7745fa382fe96cMarshall Clow} 61