Function testStickyErrors

test/basic_parser.cpp:1635–1668

    }

    void
    testStickyErrors()
    {
        {
            null_parser p;
            system::error_code ec;
            p.write("*", 1, ec);
            BOOST_TEST(ec);
            system::error_code ec2;
            p.write("[]", 2, ec2);
            BOOST_TEST(ec2 == ec);
            p.reset();
            p.write("[]", 2, ec2);
            BOOST_TEST(! ec2);
        }

        // exceptions do not cause UB
        {
            throw_parser p(1);
            try
            {
                system::error_code ec;
                p.write(false, "null", 4, ec);
                BOOST_TEST_FAIL();
            }
            catch(std::exception const&)
            {
                system::error_code ec;
                p.write(false, "null", 4, ec);
                BOOST_TEST(ec == error::exception);
                BOOST_TEST(ec.has_location());
            }
        }
    }

#ifndef BOOST_NO_CXX17_HDR_STRING_VIEW
    using SV = std::string_view;