source: NonGTP/Boost/boost/range/empty.hpp @ 857

Revision 857, 1.7 KB checked in by igarcia, 19 years ago (diff)
Line 
1// Boost.Range library
2//
3//  Copyright Thorsten Ottosen 2003-2004. Use, modification and
4//  distribution is subject to the Boost Software License, Version
5//  1.0. (See accompanying file LICENSE_1_0.txt or copy at
6//  http://www.boost.org/LICENSE_1_0.txt)
7//
8// For more information, see http://www.boost.org/libs/range/
9//
10
11#ifndef BOOST_RANGE_EMPTY_HPP
12#define BOOST_RANGE_EMPTY_HPP
13
14#if defined(_MSC_VER) && (_MSC_VER >= 1200)
15# pragma once
16#endif
17
18#include <boost/range/config.hpp>
19//#ifdef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
20//#include <boost/range/detail/empty.hpp>
21//#else
22
23#include <boost/range/begin.hpp>
24#include <boost/range/end.hpp>
25
26namespace boost
27{
28namespace range_detail
29{
30
31        //////////////////////////////////////////////////////////////////////
32        // primary template
33        //////////////////////////////////////////////////////////////////////
34
35        template< typename C >
36        inline bool empty( const C& c )
37        {
38            return boost::begin( c ) == boost::end( c );
39        }
40
41        //////////////////////////////////////////////////////////////////////
42        // string
43        //////////////////////////////////////////////////////////////////////
44
45        inline bool empty( const char* const& s )
46        {
47            return s == 0 || s[0] == 0;
48        }
49
50        inline bool empty( const wchar_t* const& s )
51        {
52            return s == 0 || s[0] == 0;
53        }
54       
55} // namespace 'range_detail'
56
57template< class T >
58inline bool empty( const T& r )
59{
60    return range_detail::empty( r );
61}
62
63} // namepace 'boost'
64
65//#endif //  BOOST_NO_FUNCTION_TEMPLATE_ORDERING
66
67#endif
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