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42 lines
824 B
C++
42 lines
824 B
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef AB_H
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#define AB_H
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#include <cassert>
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class A
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{
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int id_;
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public:
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explicit A(int id) : id_(id) {++count;}
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A(const A& a) : id_(a.id_) {++count;}
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virtual ~A() {assert(id_ >= 0); id_ = -1; --count;}
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static int count;
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};
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int A::count = 0;
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class B
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: public A
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{
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public:
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explicit B(int id) : A(id) {++count;}
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B(const B& a) : A(a) {++count;}
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virtual ~B() {--count;}
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static int count;
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};
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int B::count = 0;
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#endif // AB_H
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