cmtkMemory.h

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/*
//
//  Copyright 1997-2010 Torsten Rohlfing
//
//  Copyright 2004-2010 SRI International
//
//  This file is part of the Computational Morphometry Toolkit.
//
//  http://www.nitrc.org/projects/cmtk/
//
//  The Computational Morphometry Toolkit is free software: you can
//  redistribute it and/or modify it under the terms of the GNU General Public
//  License as published by the Free Software Foundation, either version 3 of
//  the License, or (at your option) any later version.
//
//  The Computational Morphometry Toolkit is distributed in the hope that it
//  will be useful, but WITHOUT ANY WARRANTY; without even the implied
//  warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License along
//  with the Computational Morphometry Toolkit.  If not, see
//  <http://www.gnu.org/licenses/>.
//
//  $Revision: 2752 $
//
//  $LastChangedDate: 2011-01-17 11:33:31 -0800 (Mon, 17 Jan 2011) $
//
//  $LastChangedBy: torstenrohlfing $
//
*/

#ifndef __cmtkMemory_h_included_
#define __cmtkMemory_h_included_

#include <cmtkconfig.h>

#include <stdlib.h>

namespace
cmtk
{


namespace Memory
{

size_t GetNextPowerOfTwo( size_t k );

template<class T>
inline 
T*
AllocateArray( const size_t size )
{
  return static_cast<T*>( malloc( size * sizeof( T ) ) );
}

template<class T>
inline
void
DeleteArray( T *const array )
{
  free( array );
}

template<class T>
inline void
Set( T* const to, const T value, const size_t length ) 
{
  for ( size_t i = 0; i < length; ++i )
    to[i] = value;
}

template<class T>
inline void
Copy( T* const to, const T* from, const size_t length ) 
{
  for ( size_t i = 0; i < length; ++i )
    to[i] = from[i];
}

template<class T>
T ByteSwap( T value ) 
{
  char *const cptr = reinterpret_cast<char*>( &value );
  unsigned int j = sizeof(T)-1;
  for ( unsigned int i = 0; i < j; ++i, --j ) 
    {
    char tmp = cptr[i];
    cptr[i] = cptr[j];
    cptr[j] = tmp;
    }
  return value;
}

template<class T>
void ByteSwapInPlace( T& value ) 
{
  char *const cptr = reinterpret_cast<char*>( &value );
  unsigned int j = sizeof(T)-1;
  for ( unsigned int i = 0; i < j; ++i, --j ) 
    {
    char tmp = cptr[i];
    cptr[i] = cptr[j];
    cptr[j] = tmp;
    }
}


size_t Used();

void Info ( const char *msg = NULL );

void Diff ( const size_t before, const char *msg );

} // namespace Memory


} // namespace cmtk

#endif // #ifndef __cmtkMemory_h_included_