| 1 | /* |
|---|---|
| 2 | * Distributed under the Boost Software License, Version 1.0.(See accompanying |
| 3 | * file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.) |
| 4 | * |
| 5 | * See http://www.boost.org/libs/iostreams for documentation. |
| 6 | |
| 7 | * File: libs/iostreams/test/stream_offset_32bit_test.cpp |
| 8 | * Date: Sun Dec 23 21:11:23 MST 2007 |
| 9 | * Copyright: 2007-2008 CodeRage, LLC |
| 10 | * Author: Jonathan Turkanis |
| 11 | * Contact: turkanis at coderage dot com |
| 12 | * |
| 13 | * Tests the functions defined in the header "boost/iostreams/positioning.hpp" |
| 14 | * with small (32-bit) file offsets. |
| 15 | */ |
| 16 | |
| 17 | #include <boost/iostreams/positioning.hpp> |
| 18 | #include <boost/test/test_tools.hpp> |
| 19 | #include <boost/test/unit_test.hpp> |
| 20 | #include <boost/type_traits/is_integral.hpp> |
| 21 | |
| 22 | using namespace std; |
| 23 | using namespace boost; |
| 24 | using namespace boost::iostreams; |
| 25 | using boost::unit_test::test_suite; |
| 26 | |
| 27 | void stream_offset_32bit_test() |
| 28 | { |
| 29 | stream_offset small_file = 1000000; |
| 30 | stream_offset off = -small_file; |
| 31 | streampos pos = offset_to_position(off); |
| 32 | |
| 33 | while (off < small_file) |
| 34 | { |
| 35 | BOOST_CHECK(off == position_to_offset(offset_to_position(off))); |
| 36 | BOOST_CHECK(pos == offset_to_position(position_to_offset(pos))); |
| 37 | off += 20000; |
| 38 | pos += 20000; |
| 39 | BOOST_CHECK(off == position_to_offset(offset_to_position(off))); |
| 40 | BOOST_CHECK(pos == offset_to_position(position_to_offset(pos))); |
| 41 | off -= 10000; |
| 42 | pos -= 10000; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | test_suite* init_unit_test_suite(int, char* []) |
| 47 | { |
| 48 | test_suite* test = BOOST_TEST_SUITE("stream_offset 32-bit test"); |
| 49 | test->add(BOOST_TEST_CASE(&stream_offset_32bit_test)); |
| 50 | return test; |
| 51 | } |
| 52 |