repos/Represent/Binary.cpp

// Represent
//
// Douglas Thrift
//
// $Id$

#include "Binary.hpp"

#ifdef _WIN32
#pragma warning(disable:4267)
#endif

Binary::Binary(const ext::String& string, bool signed_) : bytes(string.GetSize() / 8, 0)
{
        if (string.IsEmpty())
        {
                bytes.InsertLast(0);

                return;
        }

        size_t index(string.GetSize() % 8), offset(index);

        _rforeach (ext::Vector<byte_t>, byte, bytes) _rfor (byte_t, bit, 0, 8) *byte |= (string[index++] == '1') << bit;

        if (offset != 0)
        {
                bytes.InsertLast(0);

                _rfor (byte_t, bit, offset, 8) bytes.Last() |= (signed_ && string[0] == '1') << bit;

                index = 0;

                _rfor (byte_t, bit, 0, offset) bytes.Last() |= (string[index++] == '1') << bit;
        }
}

Binary::operator ext::String() const
{
        ext::String string;

        _rforeach (const ext::Vector<byte_t>, byte, bytes) _rfor (byte_t, bit, 0, 8) string.InsertLast(1 & *byte >> bit ? '1' : '0');

        return string;
}
Revision:	422
Committed:	2005-03-09T19:08:17-08:00 (20 years, 3 months ago) by douglas
File size:	886 byte(s)
Log Message:	Gah! Menes is going crazy right now!
#	Content
1	// Represent
2	//
3	// Douglas Thrift
4	//
5	// $Id$
6
7	#include "Binary.hpp"
8
9	#ifdef _WIN32
10	#pragma warning(disable:4267)
11	#endif
12
13	Binary::Binary(const ext::String& string, bool signed_) : bytes(string.GetSize() / 8, 0)
14	{
15	if (string.IsEmpty())
16	{
17	bytes.InsertLast(0);
18
19	return;
20	}
21
22	size_t index(string.GetSize() % 8), offset(index);
23
24	_rforeach (ext::Vector<byte_t>, byte, bytes) _rfor (byte_t, bit, 0, 8) *byte \|= (string[index++] == '1') << bit;
25
26	if (offset != 0)
27	{
28	bytes.InsertLast(0);
29
30	_rfor (byte_t, bit, offset, 8) bytes.Last() \|= (signed_ && string[0] == '1') << bit;
31
32	index = 0;
33
34	_rfor (byte_t, bit, 0, offset) bytes.Last() \|= (string[index++] == '1') << bit;
35	}
36	}
37
38	Binary::operator ext::String() const
39	{
40	ext::String string;
41
42	_rforeach (const ext::Vector<byte_t>, byte, bytes) _rfor (byte_t, bit, 0, 8) string.InsertLast(1 & *byte >> bit ? '1' : '0');
43
44	return string;
45	}