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- // Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
- //
- // Distributed under 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)
- // For more information, see http://www.boost.org
- // -- io_test.cpp -----------------------------------------------
- //
- // Testing the I/O facilities of tuples
- #define BOOST_INCLUDE_MAIN // for testing, include rather than link
- #include "boost/test/test_tools.hpp" // see "Header Implementation Option"
- #include "boost/tuple/tuple_io.hpp"
- #include "boost/tuple/tuple_comparison.hpp"
- #include <fstream>
- #include <iterator>
- #include <algorithm>
- #include <string>
- #include <iomanip>
- #if defined BOOST_NO_STRINGSTREAM
- #include <strstream>
- #else
- #include <sstream>
- #endif
- using namespace boost;
- #if defined BOOST_NO_STRINGSTREAM
- typedef std::ostrstream useThisOStringStream;
- typedef std::istrstream useThisIStringStream;
- #else
- typedef std::ostringstream useThisOStringStream;
- typedef std::istringstream useThisIStringStream;
- #endif
- int test_main(int argc, char * argv[] ) {
- (void)argc;
- (void)argv;
- using boost::tuples::set_close;
- using boost::tuples::set_open;
- using boost::tuples::set_delimiter;
-
- useThisOStringStream os1;
- // Set format [a, b, c] for os1
- os1 << set_open('[');
- os1 << set_close(']');
- os1 << set_delimiter(',');
- os1 << make_tuple(1, 2, 3);
- BOOST_CHECK (os1.str() == std::string("[1,2,3]") );
- {
- useThisOStringStream os2;
- // Set format (a:b:c) for os2;
- os2 << set_open('(');
- os2 << set_close(')');
- os2 << set_delimiter(':');
- #if !defined (BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
- os2 << make_tuple("TUPU", "HUPU", "LUPU", 4.5);
- BOOST_CHECK (os2.str() == std::string("(TUPU:HUPU:LUPU:4.5)") );
- #endif
- }
- // The format is still [a, b, c] for os1
- os1 << make_tuple(1, 2, 3);
- BOOST_CHECK (os1.str() == std::string("[1,2,3][1,2,3]") );
- // check empty tuple.
- useThisOStringStream os3;
- os3 << make_tuple();
- BOOST_CHECK (os3.str() == std::string("()") );
- os3 << set_open('[');
- os3 << set_close(']');
- os3 << make_tuple();
- BOOST_CHECK (os3.str() == std::string("()[]") );
-
- // check width
- useThisOStringStream os4;
- os4 << std::setw(10) << make_tuple(1, 2, 3);
- BOOST_CHECK (os4.str() == std::string(" (1 2 3)") );
- std::ofstream tmp("temp.tmp");
- #if !defined (BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
- tmp << make_tuple("One", "Two", 3);
- #endif
- tmp << set_delimiter(':');
- tmp << make_tuple(1000, 2000, 3000) << std::endl;
- tmp.close();
-
- // When teading tuples from a stream, manipulators must be set correctly:
- std::ifstream tmp3("temp.tmp");
- tuple<std::string, std::string, int> j;
- #if !defined (BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
- tmp3 >> j;
- BOOST_CHECK (tmp3.good() );
- #endif
-
- tmp3 >> set_delimiter(':');
- tuple<int, int, int> i;
- tmp3 >> i;
- BOOST_CHECK (tmp3.good() );
-
- tmp3.close();
- // reading tuple<int, int, int> in format (a b c);
- useThisIStringStream is1("(100 200 300)");
-
- tuple<int, int, int> ti1;
- BOOST_CHECK(bool(is1 >> ti1));
- BOOST_CHECK(ti1 == make_tuple(100, 200, 300));
- useThisIStringStream is2("()");
- tuple<> ti2;
- BOOST_CHECK(bool(is2 >> ti2));
- useThisIStringStream is3("[]");
- is3 >> set_open('[');
- is3 >> set_close(']');
- BOOST_CHECK(bool(is3 >> ti2));
- // Make sure that whitespace between elements
- // is skipped.
- useThisIStringStream is4("(100 200 300)");
-
- BOOST_CHECK(bool(is4 >> std::noskipws >> ti1));
- BOOST_CHECK(ti1 == make_tuple(100, 200, 300));
- // Note that strings are problematic:
- // writing a tuple on a stream and reading it back doesn't work in
- // general. If this is wanted, some kind of a parseable string class
- // should be used.
-
- return 0;
- }
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