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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 // template <class StateT> class fpos
13 
14 // Subraction with offset
15 
16 #include <ios>
17 #include <cassert>
18 
main()19 int main()
20 {
21     typedef std::fpos<std::mbstate_t> P;
22     P p(11);
23     std::streamoff o(6);
24     P q = p - o;
25     assert(q == P(5));
26     p -= o;
27     assert(p == q);
28 }
29