| 1 | /* |
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| 2 | * Copyright Andrey Semashev 2018. |
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| 3 | * Distributed under the Boost Software License, Version 1.0. |
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| 4 | * (See accompanying file LICENSE_1_0.txt or copy at |
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| 5 | * https://www.boost.org/LICENSE_1_0.txt) |
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| 6 | */ |
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| 7 | /*! |
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| 8 | * \file uncaught_exceptions.cpp |
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| 9 | * \author Andrey Semashev |
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| 10 | * \date 2018-11-10 |
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| 11 | * |
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| 12 | * \brief This file contains tests for the uncaught_exceptions function. |
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| 13 | * |
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| 14 | * This file only contains the very basic checks of functionality that can be portably achieved |
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| 15 | * through C++03 std::uncaught_exception. |
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| 16 | */ |
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| 17 | |
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| 18 | #include <boost/core/uncaught_exceptions.hpp> |
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| 19 | #include <boost/core/lightweight_test.hpp> |
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| 20 | |
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| 21 | #if defined(_MSC_VER) |
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| 22 | # pragma warning(disable: 4512) // assignment operator could not be generated |
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| 23 | #endif |
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| 24 | |
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| 25 | struct my_exception {}; |
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| 26 | |
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| 27 | class exception_watcher |
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| 28 | { |
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| 29 | unsigned int& m_count; |
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| 30 | |
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| 31 | public: |
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| 32 | explicit exception_watcher(unsigned int& count) : m_count(count) {} |
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| 33 | ~exception_watcher() { m_count = boost::core::uncaught_exceptions(); } |
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| 34 | }; |
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| 35 | |
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| 36 | // Tests for uncaught_exceptions when used in a destructor while an exception propagates |
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| 37 | void test_in_destructor() |
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| 38 | { |
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| 39 | const unsigned int root_count = boost::core::uncaught_exceptions(); |
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| 40 | |
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| 41 | unsigned int level1_count = root_count; |
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| 42 | try |
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| 43 | { |
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| 44 | exception_watcher watcher(level1_count); |
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| 45 | throw my_exception(); |
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| 46 | } |
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| 47 | catch (...) |
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| 48 | { |
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| 49 | } |
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| 50 | |
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| 51 | BOOST_TEST_NE(root_count, level1_count); |
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| 52 | } |
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| 53 | |
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| 54 | int main() |
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| 55 | { |
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| 56 | test_in_destructor(); |
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| 57 | |
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| 58 | return boost::report_errors(); |
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| 59 | } |
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| 60 | |
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