libcxx/test/std/utilities/utility/operators/rel_ops.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 // test rel_ops
  10
  11 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
  12
  13 #include <utility>
  14 #include <cassert>
  15
  16 #include "test_macros.h"
  17
  18 struct A
  19 {
  20     int data_;
  21
  22     explicit A(int data = -1) : data_(data) {}
  23 };
  24
  25 inline
  26 bool
  27 operator == (const A& x, const A& y)
  28 {
  29     return x.data_ == y.data_;
  30 }
  31
  32 inline
  33 bool
  34 operator < (const A& x, const A& y)
  35 {
  36     return x.data_ < y.data_;
  37 }
  38
  39 int main(int, char**)
  40 {
  41     using namespace std::rel_ops;
  42     A a1(1);
  43     A a2(2);
  44     assert(a1 == a1);
  45     assert(a1 != a2);
  46     assert(a1 < a2);
  47     assert(a2 > a1);
  48     assert(a1 <= a1);
  49     assert(a1 <= a2);
  50     assert(a2 >= a2);
  51     assert(a2 >= a1);
  52
  53   return 0;
  54 }