llvm-project/libcxxabi/test/unwind_04.cpp

//===------------------------- unwind_04.cpp ------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#include <exception>
#include <stdlib.h>
#include <assert.h>

struct A
{
    static int count;
    int id_;
    A() : id_(++count) {}
    ~A() {assert(id_ == count--);}

private:
    A(const A&);
    A& operator=(const A&);
};

int A::count = 0;

struct B
{
    static int count;
    int id_;
    B() : id_(++count) {}
    ~B() {assert(id_ == count--);}

private:
    B(const B&);
    B& operator=(const B&);
};

int B::count = 0;

struct C
{
    static int count;
    int id_;
    C() : id_(++count) {}
    ~C() {assert(id_ == count--);}

private:
    C(const C&);
    C& operator=(const C&);
};

int C::count = 0;

void f2()
{
    C c;
    A a;
    throw 55;
    B b;
}

void f1() throw (long, char, double)
{
    A a;
    B b;
    f2();
    C c;
}

void u_handler()
{
    throw 'a';
}

int main()
{
    std::set_unexpected(u_handler);
    try
    {
        f1();
        assert(false);
    }
    catch (int* i)
    {
        assert(false);
    }
    catch (long i)
    {
        assert(false);
    }
    catch (int i)
    {
        assert(false);
    }
    catch (char c)
    {
        assert(c == 'a');
    }
    catch (...)
    {
        assert(false);
    }
    assert(A::count == 0);
    assert(B::count == 0);
    assert(C::count == 0);
}