libcxx/test/support/DefaultOnly.h

   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 #ifndef DEFAULTONLY_H
  10 #define DEFAULTONLY_H
  11
  12 #include <cassert>
  13
  14 class DefaultOnly
  15 {
  16     int data_;
  17
  18     DefaultOnly(const DefaultOnly&);
  19     DefaultOnly& operator=(const DefaultOnly&);
  20 public:
  21     static int count;
  22
  23     DefaultOnly() : data_(-1) {++count;}
  24     ~DefaultOnly() {data_ = 0; --count;}
  25
  26     friend bool operator==(const DefaultOnly& x, const DefaultOnly& y)
  27         {return x.data_ == y.data_;}
  28     friend bool operator< (const DefaultOnly& x, const DefaultOnly& y)
  29         {return x.data_ < y.data_;}
  30 };
  31
  32 int DefaultOnly::count = 0;
  33
  34 #endif  // DEFAULTONLY_H