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 stream_offset_32bit_test()27void 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 init_unit_test_suite(int,char * [])46test_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