external/bsd/libc++/dist/libcxx/test/support/DefaultOnly.h

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