get_const.compile.fail.cpp
830 Bytes
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <utility>
// template <class T1, class T2> struct pair
// template<size_t I, class T1, class T2>
// const typename tuple_element<I, std::pair<T1, T2> >::type&
// get(const pair<T1, T2>&);
#include <utility>
#include <cassert>
int main(int, char**)
{
{
typedef std::pair<int, short> P;
const P p(3, 4);
assert(std::get<0>(p) == 3);
assert(std::get<1>(p) == 4);
std::get<0>(p) = 5;
}
return 0;
}