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// Range v3 library
//
// Copyright Eric Niebler 2017-present
//
// Use, modification and distribution is subject to the
// Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// Project home: https://github.com/ericniebler/range-v3
#include <range/v3/utility/scope_exit.hpp>
#include "../simple_test.hpp"
#include "../test_utils.hpp"
RANGES_DIAGNOSTIC_IGNORE_UNNEEDED_MEMBER
namespace
{
int i = 0;
struct NoexceptFalse
{
NoexceptFalse() {}
NoexceptFalse(NoexceptFalse const &) noexcept(false)
{}
NoexceptFalse(NoexceptFalse &&) noexcept(false)
{
CHECK(false);
}
void operator()() const
{
++i;
}
};
struct ThrowingCopy
{
ThrowingCopy() {}
[[noreturn]] ThrowingCopy(ThrowingCopy const &) noexcept(false)
{
throw 42;
}
ThrowingCopy(ThrowingCopy &&) noexcept(false)
{
CHECK(false);
}
void operator()() const
{
++i;
}
};
}
int main()
{
std::cout << "\nTesting scope_exit\n";
{
auto guard = ranges::make_scope_exit([&]{++i;});
CHECK(i == 0);
}
CHECK(i == 1);
{
auto guard = ranges::make_scope_exit(NoexceptFalse{});
CHECK(i == 1);
}
CHECK(i == 2);
try
{
auto guard = ranges::make_scope_exit(ThrowingCopy{});
CHECK(false);
}
catch(int)
{}
CHECK(i == 3);
return ::test_result();
}
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