libcxx/test/std/containers/sequences/vector/vector.cons/deduct.verify.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 // <vector>
  10 // UNSUPPORTED: c++03, c++11, c++14
  11
  12 // template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
  13 //    vector(InputIterator, InputIterator, Allocator = Allocator())
  14 //    -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>;
  15 //
  16
  17 #include <cassert>
  18 #include <cstddef>
  19 #include <vector>
  20
  21 int main(int, char**) {
  22   //  Test the explicit deduction guides
  23   // TODO: Should there be tests for explicit deduction guides?
  24
  25   //  Test the implicit deduction guides
  26   {
  27     //  vector (allocator &)
  28     // expected-error-re@+1 {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}vector'}}
  29     std::vector vec(std::allocator< int>{});
  30   }
  31
  32   return 0;
  33 }