third_party/llvm-project/libcxx/test/std/language.support/support.exception/uncaught/uncaught_exceptions.pass.cpp

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: no-exceptions

// std::uncaught_exceptions() was introduced in the dylib on Mac OS 10.12
// XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{9|10|11}}

// However, std::uncaught_exceptions() gives the wrong answer in Mac OS 10.12
// and 10.13, where it only gives 0 or 1. This was fixed later.
// XFAIL: stdlib=apple-libc++ && target={{.+}}-apple-macosx10.{{12|13}}

// test uncaught_exceptions

#include <exception>
#include <cassert>

#include "test_macros.h"

struct Uncaught {
    Uncaught(int depth) : d_(depth) {}
    ~Uncaught() { assert(std::uncaught_exceptions() == d_); }
    int d_;
    };

struct Outer {
    Outer(int depth) : d_(depth) {}
    ~Outer() {
    try {
        assert(std::uncaught_exceptions() == d_);
        Uncaught u(d_+1);
        throw 2;
    }
    catch (int) {}
    }
    int d_;
};

int main(int, char**) {
    assert(std::uncaught_exceptions() == 0);
    {
    Outer o(0);
    }

    assert(std::uncaught_exceptions() == 0);
    {
    try {
        Outer o(1);
        throw 1;
        }
    catch (int) {
        assert(std::uncaught_exceptions() == 0);
        }
    }
    assert(std::uncaught_exceptions() == 0);

  return 0;
}