libcxx/test/std/containers/container.adaptors/stack/stack.ops/lt.pass.cpp

   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 // <stack>
  10
  11 // template <class T, class Container>
  12 //   bool operator< (const stack<T, Container>& x,const stack<T, Container>& y);
  13 //
  14 // template <class T, class Container>
  15 //   bool operator> (const stack<T, Container>& x,const stack<T, Container>& y);
  16 //
  17 // template <class T, class Container>
  18 //   bool operator>=(const stack<T, Container>& x,const stack<T, Container>& y);
  19 //
  20 // template <class T, class Container>
  21 //   bool operator<=(const stack<T, Container>& x,const stack<T, Container>& y);
  22
  23 #include <stack>
  24 #include <cassert>
  25
  26 #include "test_macros.h"
  27
  28 template <class C>
  29 C
  30 make(int n)
  31 {
  32     C c;
  33     for (int i = 0; i < n; ++i)
  34         c.push(i);
  35     return c;
  36 }
  37
  38 int main(int, char**)
  39 {
  40     std::stack<int> q1 = make<std::stack<int> >(5);
  41     std::stack<int> q2 = make<std::stack<int> >(10);
  42     assert(q1 < q2);
  43     assert(q2 > q1);
  44     assert(q1 <= q2);
  45     assert(q2 >= q1);
  46
  47   return 0;
  48 }