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 // XFAIL: libcpp-has-no-stdin
10 
11 // <iostream>
12 
13 // istream cin;
14 
15 // FILE_DEPENDENCIES: %t.exe
16 // RUN: %{build}
17 // RUN: %{exec} echo "123" \| %t.exe > %t.out
18 // RUN: grep -e 'The number is 123!' %t.out
19 
20 #include <iostream>
21 #include <cassert>
22 
23 #include "test_macros.h"
24 
25 int main(int, char**)
26 {
27     int i;
28     std::cin >> i;
29     std::cout << "The number is " << i << "!";
30 
31 #ifdef _LIBCPP_HAS_NO_STDOUT
32     assert(std::cin.tie() == NULL);
33 #else
34     assert(std::cin.tie() == &std::cout);
35 #endif
36 
37   return 0;
38 }
39