libcxxabi/test/catch_class_02.pass.cpp

   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 // UNSUPPORTED: no-exceptions
  10
  11 #include <exception>
  12 #include <stdlib.h>
  13 #include <assert.h>
  14
  15 struct B
  16 {
  17     static int count;
  18     int id_;
  19     explicit B(int id) : id_(id) {count++;}
  20     B(const B& a) : id_(a.id_) {count++;}
  21     ~B() {count--;}
  22 };
  23
  24 int B::count = 0;
  25
  26 struct A
  27     : B
  28 {
  29     static int count;
  30     int id_;
  31     explicit A(int id) : B(id-1), id_(id) {count++;}
  32     A(const A& a) : B(a.id_-1), id_(a.id_) {count++;}
  33     ~A() {count--;}
  34 };
  35
  36 int A::count = 0;
  37
  38 void f1()
  39 {
  40     assert(A::count == 0);
  41     assert(B::count == 0);
  42     A a(3);
  43     assert(A::count == 1);
  44     assert(B::count == 1);
  45     throw a;
  46     assert(false);
  47 }
  48
  49 void f2()
  50 {
  51     try
  52     {
  53         assert(A::count == 0);
  54         f1();
  55     assert(false);
  56     }
  57     catch (A a)
  58     {
  59         assert(A::count != 0);
  60         assert(B::count != 0);
  61         assert(a.id_ == 3);
  62         throw;
  63     }
  64     catch (B b)
  65     {
  66         assert(false);
  67     }
  68 }
  69
  70 int main(int, char**)
  71 {
  72     try
  73     {
  74         f2();
  75         assert(false);
  76     }
  77     catch (const B& b)
  78     {
  79         assert(B::count != 0);
  80         assert(b.id_ == 2);
  81     }
  82     assert(A::count == 0);
  83     assert(B::count == 0);
  84
  85     return 0;
  86 }