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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
#include "boost/tuple/tuple_io.hpp"
#include "boost/tuple/tuple_comparison.hpp"
#include "boost/core/lightweight_test.hpp"
#include <fstream>
#include <iterator>
#include <algorithm>
#include <string>
#include <iomanip>
#if defined BOOST_NO_STRINGSTREAM
#include <strstream>
#else
#include <sstream>
#endif
#define BOOST_CHECK BOOST_TEST
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 main() {
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 boost::report_errors();
}
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