File: endianess.cpp

package info (click to toggle)
clanlib 1.0~svn3827-8
  • links: PTS, VCS
  • area: main
  • in suites: bookworm, bullseye
  • size: 24,696 kB
  • sloc: cpp: 101,591; xml: 6,410; makefile: 1,742; ansic: 463; perl: 424; php: 247; sh: 53
file content (62 lines) | stat: -rw-r--r-- 1,701 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
/*
**  ClanLib SDK
**  Copyright (c) 1997-2005 The ClanLib Team
**
**  This software is provided 'as-is', without any express or implied
**  warranty.  In no event will the authors be held liable for any damages
**  arising from the use of this software.
**
**  Permission is granted to anyone to use this software for any purpose,
**  including commercial applications, and to alter it and redistribute it
**  freely, subject to the following restrictions:
**
**  1. The origin of this software must not be misrepresented; you must not
**     claim that you wrote the original software. If you use this software
**     in a product, an acknowledgment in the product documentation would be
**     appreciated but is not required.
**  2. Altered source versions must be plainly marked as such, and must not be
**     misrepresented as being the original software.
**  3. This notice may not be removed or altered from any source distribution.
**
**  Note: Some of the libraries ClanLib may link to may have additional
**  requirements or restrictions.
**
**  File Author(s):
**
**    Magnus Norddahl
**    (if your name is missing here, please add it)
*/

#include "Core/precomp.h"

#include "API/Core/IOData/cl_endian.h"

void CL_Endian::swap(void *data, int type_size, int total_times)
{
	if (type_size == 1) return;

	unsigned char *d = (unsigned char *) data;

	for (int j=0; j<total_times; j++)
	{
		for (int i=0; i<type_size/2; i++)
		{
			unsigned char a = d[i];
			d[i] = d[type_size-1-i];
			d[type_size-1-i] = a;
		}
		
		d += type_size;
	}
}

bool CL_Endian::is_system_big()
{
	const int i = 1;
	return !(*(char *)(&i));
}

bool CL_Endian::is_system_64bit()
{
	return (sizeof(int*) == 8);
}