Example #1
0
void check_iterator_range()
{

    typedef std::string::iterator                 iterator;
    typedef std::string::const_iterator           const_iterator;
    typedef boost::iterator_range<iterator>       irange;
    typedef boost::iterator_range<const_iterator> cirange;
    std::string       str  = "hello world";
    const std::string cstr = "const world";
    irange r    = boost::make_iterator_range( str );
    r           = boost::make_iterator_range( str.begin(), str.end() );
    cirange r2  = boost::make_iterator_range( cstr );
    r2          = boost::make_iterator_range( cstr.begin(), cstr.end() );
    r2          = boost::make_iterator_range( str );

    BOOST_CHECK( !r.empty() );
    BOOST_CHECK( !r2.empty() );

//#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
//    if( !(bool)r )
//        BOOST_CHECK( false );
//    if( !(bool)r2 )
//        BOOST_CHECK( false );
//#else
    if( !r )
        BOOST_CHECK( false );
    if( !r2 )
        BOOST_CHECK( false );
//#endif

    BOOST_CHECK_EQUAL( r.size(), size( r ) );
    BOOST_CHECK_EQUAL( r2.size(), size( r2 ) );

    BOOST_CHECK_EQUAL( std::distance( r.begin(), r.end() ),
                       std::distance( boost::begin( r2 ), boost::end( r2 ) ) );
    std::cout << r << r2;


#ifndef BOOST_NO_STD_WSTRING
    std::wcout << boost::make_iterator_range( std::wstring( L"a wide string" ) )
               << boost::make_iterator_range( L"another wide string" );
#endif

    std::string res  = boost::copy_range<std::string>( r );
    BOOST_CHECK_EQUAL_COLLECTIONS( res.begin(), res.end(), r.begin(), r.end() );

    irange rr = boost::make_iterator_range( str );
    BOOST_CHECK( rr.equal( r ) );

    rr  = boost::make_iterator_range( str.begin(), str.begin() + 5 );
    BOOST_CHECK( rr == boost::as_literal("hello") );
    BOOST_CHECK( rr != boost::as_literal("hell") );
    BOOST_CHECK( rr < boost::as_literal("hello dude") );
    BOOST_CHECK( boost::as_literal("hello") == rr );
    BOOST_CHECK( boost::as_literal("hell")  != rr );
    BOOST_CHECK( ! (boost::as_literal("hello dude") < rr ) );
    irange rrr = rr;
    BOOST_CHECK( rrr == rr );
    BOOST_CHECK( !( rrr != rr ) );
    BOOST_CHECK( !( rrr < rr ) );

    const irange cr = boost::make_iterator_range( str );
    BOOST_CHECK_EQUAL( cr.front(), 'h' );
    BOOST_CHECK_EQUAL( cr.back(), 'd' );
    BOOST_CHECK_EQUAL( cr[1], 'e' );
    BOOST_CHECK_EQUAL( cr(1), 'e' );

    rrr = boost::make_iterator_range( str, 1, -1 );
    BOOST_CHECK( rrr == boost::as_literal("ello worl") );
    rrr = boost::make_iterator_range( rrr, -1, 1 );
    BOOST_CHECK( rrr == str );

    check_reference_type();
    
    // Check that an iterator range can be instantiated with
    // a pointer to an array as an iterator.
    int arr[2][2];
    boost::make_iterator_range(arr, arr + 2);
}
void check_sub_range()
{
      
    typedef string::iterator               iterator;
    typedef string::const_iterator         const_iterator;
    typedef iterator_range<iterator>       irange;
    typedef iterator_range<const_iterator> cirange;
    string       str  = "hello world";
    const string cstr = "const world";
    irange r    = make_iterator_range( str );
    r           = make_iterator_range( str.begin(), str.end() );
    cirange r2  = make_iterator_range( cstr );
    r2          = make_iterator_range( cstr.begin(), cstr.end() );
    r2          = make_iterator_range( str );
 
    typedef sub_range<string>       srange;
    typedef sub_range<const string> csrange;
    srange s     = r;
    BOOST_CHECK( r == r );
    BOOST_CHECK( s == r );
    s            = make_iterator_range( str );
    csrange s2   = r;
    s2           = r2;
    s2           = make_iterator_range( cstr );
    BOOST_CHECK( r2 == r2 );
    BOOST_CHECK( s2 != r2 );
    s2           = make_iterator_range( str );
    BOOST_CHECK( !(s != s) );
    
    BOOST_CHECK( r.begin() == s.begin() );
    BOOST_CHECK( r2.begin()== s2.begin() );
    BOOST_CHECK( r.end()   == s.end() );
    BOOST_CHECK( r2.end()  == s2.end() );
    BOOST_CHECK_EQUAL( r.size(), s.size() );
    BOOST_CHECK_EQUAL( r2.size(), s2.size() );
    
//#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
//    if( !(bool)r )
//        BOOST_CHECK( false );
//    if( !(bool)r2 )
//        BOOST_CHECK( false );
//    if( !(bool)s )
//        BOOST_CHECK( false );
//    if( !(bool)s2 )
//        BOOST_CHECK( false );    
//#else
    if( !r )
        BOOST_CHECK( false );
    if( !r2 )
        BOOST_CHECK( false );
    if( !s )
        BOOST_CHECK( false );
    if( !s2 )
        BOOST_CHECK( false );
//#endif    

    cout << r << r2 << s << s2;
    
    string res  = copy_range<string>( r );
    BOOST_CHECK( equal( res.begin(), res.end(), r.begin() ) );
    
    r.empty();
    s.empty();
    r.size();
    s.size();

    //
    // As of range v2 not legal anymore.
    //
    //irange singular_irange;
    //BOOST_CHECK( singular_irange.empty() );
    //BOOST_CHECK( singular_irange.size() == 0 );
    //
    //srange singular_srange;
    //BOOST_CHECK( singular_srange.empty() );
    //BOOST_CHECK( singular_srange.size() == 0 );
    //
    //BOOST_CHECK( empty( singular_irange ) );
    //BOOST_CHECK( empty( singular_srange ) );
    //

    srange rr = make_iterator_range( str );
    BOOST_CHECK( rr.equal( r ) );

    rr  = make_iterator_range( str.begin(), str.begin() + 5 );
    BOOST_CHECK( rr == as_literal("hello") );
    BOOST_CHECK( rr != as_literal("hell") );
    BOOST_CHECK( rr < as_literal("hello dude") );
    BOOST_CHECK( as_literal("hello") == rr );
    BOOST_CHECK( as_literal("hell")  != rr );
    BOOST_CHECK( ! (as_literal("hello dude") < rr ) );
    
    irange rrr = rr;
    BOOST_CHECK( rrr == rr );
    BOOST_CHECK( !( rrr != rr ) );
    BOOST_CHECK( !( rrr < rr ) );

    const irange cr = make_iterator_range( str );
    BOOST_CHECK_EQUAL( cr.front(), 'h' );
    BOOST_CHECK_EQUAL( cr.back(), 'd' );
    BOOST_CHECK_EQUAL( cr[1], 'e' );
    BOOST_CHECK_EQUAL( cr(1), 'e' );

    rrr = make_iterator_range( str, 1, -1 );
    BOOST_CHECK( rrr == as_literal("ello worl") );
    rrr = make_iterator_range( rrr, -1, 1 );
    BOOST_CHECK( rrr == str );
    rrr.front() = 'H';
    rrr.back()  = 'D';
    rrr[1]      = 'E';
    BOOST_CHECK( rrr == as_literal("HEllo worlD") );
}   
void check_iterator_range()
{
   
    typedef string::iterator               iterator;
    typedef string::const_iterator         const_iterator;
    typedef iterator_range<iterator>       irange;
    typedef iterator_range<const_iterator> cirange;
    string       str  = "hello world";
    const string cstr = "const world";
    irange r    = make_iterator_range( str );
    r           = make_iterator_range( str.begin(), str.end() );
    cirange r2  = make_iterator_range( cstr );
    r2          = make_iterator_range( cstr.begin(), cstr.end() );
    r2          = make_iterator_range( str );
 
    BOOST_CHECK( !r.empty() );
    BOOST_CHECK( !r2.empty() );

//#if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
//    if( !(bool)r )
//        BOOST_CHECK( false );
//    if( !(bool)r2 )
//        BOOST_CHECK( false );
//#else    
    if( !r )
        BOOST_CHECK( false );
    if( !r2 )
        BOOST_CHECK( false );
//#endif

    BOOST_CHECK_EQUAL( r.size(), size( r ) );
    BOOST_CHECK_EQUAL( r2.size(), size( r2 ) );
    
    BOOST_CHECK_EQUAL( distance( r.begin(), r.end() ), 
                       distance( begin( r2 ), end( r2 ) ) );
    cout << r << r2;

        
#ifndef BOOST_NO_STD_WSTRING
    wcout << make_iterator_range( wstring( L"a wide string" ) ) 
          << make_iterator_range( L"another wide string" );
#endif    
    
    string res  = copy_range<string>( r );
    BOOST_CHECK( equal( res.begin(), res.end(), r.begin() ) );

    irange rr = make_iterator_range( str );
    BOOST_CHECK( rr.equal( r ) );

    rr  = make_iterator_range( str.begin(), str.begin() + 5 );
    BOOST_CHECK( rr == as_literal("hello") );
    BOOST_CHECK( rr != as_literal("hell") );
    BOOST_CHECK( rr < as_literal("hello dude") );
    BOOST_CHECK( as_literal("hello") == rr );
    BOOST_CHECK( as_literal("hell")  != rr );
    BOOST_CHECK( ! (as_literal("hello dude") < rr ) );
    irange rrr = rr;
    BOOST_CHECK( rrr == rr );
    BOOST_CHECK( !( rrr != rr ) );
    BOOST_CHECK( !( rrr < rr ) );

    const irange cr = make_iterator_range( str );
    BOOST_CHECK_EQUAL( cr.front(), 'h' );
    BOOST_CHECK_EQUAL( cr.back(), 'd' );
    BOOST_CHECK_EQUAL( cr[1], 'e' );
    BOOST_CHECK_EQUAL( cr(1), 'e' );

    rrr = make_iterator_range( str, 1, -1 );
    BOOST_CHECK( rrr == as_literal("ello worl") );
    rrr = make_iterator_range( rrr, -1, 1 );
    BOOST_CHECK( rrr == str );

    check_reference_type();
}