genode/repos/os/include/util/endian.h
Norman Feske ca971bbfd8 Move repositories to 'repos/' subdirectory
This patch changes the top-level directory layout as a preparatory
step for improving the tools for managing 3rd-party source codes.
The rationale is described in the issue referenced below.

Issue #1082
2014-05-14 16:08:00 +02:00

31 lines
659 B
C++

/*
* \brief Convert between host endianess and big endian.
* \author Stebastian Sumpf
* \author Stefan Kalkowski
* \date 2010-08-04
*/
/*
* Copyright (C) 2010-2013 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU General Public License version 2.
*/
#ifndef _UTIL__ENDIAN_H_
#define _UTIL__ENDIAN_H_
#include <base/stdint.h>
template <typename T>
inline T bswap(T x)
{
Genode::uint8_t v[sizeof(T)];
for (unsigned i=0; i<sizeof(T); i++) {
unsigned mask = (sizeof(T) - i - 1) * 8;
v[i] = (x & (0xff << mask)) >> mask;
}
return *(T *)v;
}
#endif /* _UTIL__ENDIAN_H_ */