xref: /llvm-project/libcxx/test/std/input.output/iostreams.base/ios.base/ios.base.storage/pword.pass.cpp (revision d486c5b11757be769051c1b2b6d6a18e2857dbbd)
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 // <ios>
10 
11 // class ios_base
12 
13 // void*& pword(int idx);
14 
15 // This test compiles but never completes when compiled against the MSVC STL
16 // UNSUPPORTED: stdlib=msvc
17 
18 #include <ios>
19 #include <string>
20 #include <cassert>
21 #include <cstdint>
22 
23 #include "test_macros.h"
24 
25 class test
26     : public std::ios
27 {
28 public:
test()29     test()
30     {
31         init(0);
32     }
33 };
34 
main(int,char **)35 int main(int, char**)
36 {
37     test t;
38     std::ios_base& b = t;
39     for (std::intptr_t i = 0; i < 10000; ++i)
40     {
41         assert(b.pword(i) == 0);
42         b.pword(i) = (void*)i;
43         assert(b.pword(i) == (void*)i);
44         for (std::intptr_t j = 0; j <= i; ++j)
45             assert(b.pword(j) == (void*)j);
46     }
47 
48   return 0;
49 }
50