mirror of
https://github.com/autc04/Retro68.git
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169 lines
3.1 KiB
C++
169 lines
3.1 KiB
C++
// Copyright (C) 2015-2018 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++17" }
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#include <cassert>
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#include <exception>
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#include <testsuite_hooks.h>
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#ifndef __cpp_lib_uncaught_exceptions
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# error "Feature-test macro for uncaught_exceptions missing"
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#elif __cpp_lib_uncaught_exceptions != 201411
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# error "Feature-test macro for uncaught_exceptions has wrong value"
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#endif
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struct UncaughtVerifier
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{
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int expected_count_ = 0;
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UncaughtVerifier(int expected_count) : expected_count_(expected_count) {}
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~UncaughtVerifier()
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{
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VERIFY(std::uncaught_exceptions() == expected_count_);
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}
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};
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struct Transaction
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{
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int initial_count_;
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bool& result_;
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Transaction(bool& result)
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: initial_count_(std::uncaught_exceptions()),
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result_(result) {}
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~Transaction()
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{
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if (std::uncaught_exceptions() != initial_count_) {
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result_ = false;
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}
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}
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};
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void test01()
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{
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try {
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UncaughtVerifier uv{0};
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} catch (...) {
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UncaughtVerifier uv{0};
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}
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}
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void test02()
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{
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try {
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UncaughtVerifier uv{1};
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throw 0;
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} catch (...) {
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UncaughtVerifier uv{0};
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}
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}
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void test03()
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{
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try {
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struct Wrap
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{
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UncaughtVerifier uv_{1};
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~Wrap() {try {UncaughtVerifier uv2{2}; throw 0;} catch(...) {}}
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};
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Wrap w;
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throw 0;
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} catch (...) {
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UncaughtVerifier uv{0};
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}
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}
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void test04()
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{
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bool result = true;
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try {
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Transaction t{result};
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} catch(...) {
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}
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VERIFY(result);
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}
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void test05()
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{
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bool result = true;
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try {
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Transaction t{result};
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throw 0;
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} catch(...) {
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}
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VERIFY(!result);
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}
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void test06()
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{
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bool result = true;
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bool result2 = true;
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try {
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struct Wrap
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{
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bool& result_;
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Wrap(bool& result) : result_(result) {}
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~Wrap()
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{
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Transaction t{result_};
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}
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};
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Transaction t{result};
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Wrap w{result2};
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throw 0;
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} catch(...) {
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}
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VERIFY(!result);
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VERIFY(result2);
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}
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void test07()
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{
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bool result = true;
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bool result2 = true;
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try {
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struct Wrap
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{
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bool& result_;
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Wrap(bool& result) : result_(result) {}
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~Wrap()
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{
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try {
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Transaction t{result_};
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throw 0;
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} catch(...) {}
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}
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};
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Transaction t{result};
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Wrap w{result2};
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throw 0;
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} catch(...) {
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}
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VERIFY(!result);
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VERIFY(!result2);
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}
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int main()
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{
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test01();
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test02();
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test03();
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test04();
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test05();
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test06();
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test07();
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}
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