| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef AB_H |
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| 10 | #define AB_H |
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| 11 | |
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| 12 | #include <cassert> |
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| 13 | |
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| 14 | class A |
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| 15 | { |
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| 16 | int id_; |
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| 17 | public: |
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| 18 | explicit A(int id) : id_(id) {++count;} |
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| 19 | A(const A& a) : id_(a.id_) {++count;} |
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| 20 | virtual ~A() {assert(id_ >= 0); id_ = -1; --count;} |
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| 21 | |
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| 22 | A& operator=(const A& other) { id_ = other.id_; return *this; } |
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| 23 | |
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| 24 | static int count; |
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| 25 | }; |
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| 26 | |
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| 27 | int A::count = 0; |
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| 28 | |
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| 29 | class B |
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| 30 | : public A |
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| 31 | { |
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| 32 | public: |
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| 33 | explicit B(int id) : A(id) {++count;} |
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| 34 | B(const B& a) : A(a) {++count;} |
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| 35 | virtual ~B() {--count;} |
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| 36 | |
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| 37 | static int count; |
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| 38 | }; |
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| 39 | |
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| 40 | int B::count = 0; |
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| 41 | |
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| 42 | #endif // AB_H |
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| 43 | |
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