libcxx/test/std/containers/sequences/array/array.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 // <array>
  10 // UNSUPPORTED: c++03, c++11, c++14
  11
  12 // template <class T, class... U>
  13 //   array(T, U...) -> array<T, 1 + sizeof...(U)>;
  14 //
  15 //  Requires: (is_same_v<T, U> && ...) is true. Otherwise the program is ill-formed.
  16
  17
  18 #include <array>
  19 #include <cassert>
  20 #include <cstddef>
  21
  22 #include "test_macros.h"
  23
  24 int main(int, char**)
  25 {
  26     {
  27     std::array arr{1,2,3L}; // expected-error {{no viable constructor or deduction guide for deduction of template arguments of 'array'}}
  28     }
  29
  30   return 0;
  31 }