repos/Represent/Binary.cpp

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

#include "Binary.hpp"

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);

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

        return string;
}
Revision:	371
Committed:	2004-12-21T23:19:54-08:00 (20 years, 6 months ago) by douglas
File size:	829 byte(s)
Log Message:	Sleepy.
#	Content
1	// Represent
2	//
3	// Douglas Thrift
4	//
5	// $Id$
6
7	#include "Binary.hpp"
8
9	Binary::Binary(const ext::String& string, bool signed_) : bytes(string.GetSize() / 8, 0)
10	{
11	if (string.IsEmpty())
12	{
13	bytes.InsertLast(0);
14
15	return;
16	}
17
18	size_t index(string.GetSize() % 8), offset(index);
19
20	_rmforeach (ext::Vector<byte_t>, byte, bytes) _rfor (byte_t, bit, 0, 8) *byte \|= (string[index++] == '1') << bit;
21
22	if (offset != 0)
23	{
24	bytes.InsertLast(0);
25
26	_rfor (byte_t, bit, offset, 8) bytes.Last() \|= (signed_ && string[0] == '1') << bit;
27
28	index = 0;
29
30	_rfor (byte_t, bit, 0, offset) bytes.Last() \|= (string[index++] == '1') << bit;
31	}
32	}
33
34	Binary::operator ext::String() const
35	{
36	ext::String string;
37
38	_rforeach (ext::Vector<byte_t>, byte, bytes) _rfor (byte_t, bit, 0, 8) string.InsertLast(1 & *byte >> bit ? '1' : '0');
39
40	return string;
41	}