1bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 2bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 3f5256e16dfc425c1d466f6308d4026d529ce9e0bHoward Hinnant// The LLVM Compiler Infrastructure 4bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 5b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// This file is dual licensed under the MIT and the University of Illinois Open 6b64f8b07c104c6cc986570ac8ee0ed16a9f23976Howard Hinnant// Source Licenses. See LICENSE.TXT for details. 7bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant// 8bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant//===----------------------------------------------------------------------===// 9bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 10bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#ifndef A_H 11bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#define A_H 12bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 13bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant#include <cassert> 14bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 15bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantclass A 16bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant{ 17bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int id_; 18bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantpublic: 19bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant explicit A(int id) : id_(id) {++count;} 20bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant A(const A& a) : id_(a.id_) {++count;} 21bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant ~A() {assert(id_ >= 0); id_ = -1; --count;} 22bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 23bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant int id() const {return id_;} 24bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 25bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant static int count; 26bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant}; 27bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 28bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnantint A::count = 0; 29bc8d3f97eb5c958007f2713238472e0c1c8fe02Howard Hinnant 30aa20444a4fb4f1e6deaa35c8f81498186ca17a12Howard Hinnant#endif // A_H 31