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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 // <stack>
     11 
     12 // template <class T, class Container>
     13 //   bool operator< (const stack<T, Container>& x,const stack<T, Container>& y);
     14 //
     15 // template <class T, class Container>
     16 //   bool operator> (const stack<T, Container>& x,const stack<T, Container>& y);
     17 //
     18 // template <class T, class Container>
     19 //   bool operator>=(const stack<T, Container>& x,const stack<T, Container>& y);
     20 //
     21 // template <class T, class Container>
     22 //   bool operator<=(const stack<T, Container>& x,const stack<T, Container>& y);
     23 
     24 #include <stack>
     25 #include <cassert>
     26 
     27 template <class C>
     28 C
     29 make(int n)
     30 {
     31     C c;
     32     for (int i = 0; i < n; ++i)
     33         c.push(i);
     34     return c;
     35 }
     36 
     37 int main()
     38 {
     39     std::stack<int> q1 = make<std::stack<int> >(5);
     40     std::stack<int> q2 = make<std::stack<int> >(10);
     41     assert(q1 < q2);
     42     assert(q2 > q1);
     43     assert(q1 <= q2);
     44     assert(q2 >= q1);
     45 }
     46