1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <ios>
11 
12 // class ios_base
13 
14 // void*& pword(int idx);
15 
16 #include <ios>
17 #include <string>
18 #include <cassert>
19 #include <cstdint>
20 
21 class test
22     : public std::ios
23 {
24 public:
test()25     test()
26     {
27         init(0);
28     }
29 };
30 
main()31 int main()
32 {
33     test t;
34     std::ios_base& b = t;
35     for (std::intptr_t i = 0; i < 10000; ++i)
36     {
37         assert(b.pword(i) == 0);
38         b.pword(i) = (void*)i;
39         assert(b.pword(i) == (void*)i);
40         for (std::intptr_t j = 0; j <= i; ++j)
41             assert(b.pword(j) == (void*)j);
42     }
43 }
44