libcxx/test/std/containers/sequences/list/list.modifiers/prepend_range.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20
  10
  11 // template<container-compatible-range<T> R>
  12 //   constexpr void prepend_range(R&& rg); // C++23
  13
  14 #include <list>
  15
  16 #include "../../insert_range_sequence_containers.h"
  17 #include "test_macros.h"
  18
  19 // Tested cases:
  20 // - different kinds of insertions (prepending an {empty/one-element/mid-sized/long range} into an
  21 //   {empty/one-element/full} container);
  22 // - prepending move-only elements;
  23 // - an exception is thrown when copying the elements or when allocating new elements.
  24 int main(int, char**) {
  25   static_assert(test_constraints_prepend_range<std::list, int, double>());
  26
  27   for_all_iterators_and_allocators<int, const int*>([]<class Iter, class Sent, class Alloc>() {
  28     test_sequence_prepend_range<std::list<int, Alloc>, Iter, Sent>([](auto&&) {
  29       // No additional validation to do.
  30     });
  31   });
  32   test_sequence_prepend_range_move_only<std::list>();
  33
  34   test_prepend_range_exception_safety_throwing_copy<std::list>();
  35   test_prepend_range_exception_safety_throwing_allocator<std::list, int>();
  36
  37   return 0;
  38 }