src/felib/allocate.h

   1 /*
   2  *
   3  *  Iter Vehemens ad Necem (IVAN)
   4  *  Copyright (C) Timo Kiviluoto
   5  *  Released under the GNU General
   6  *  Public License
   7  *
   8  *  See LICENSING which should be included
   9  *  along with this file for more details
  10  *
  11  */
  12 #ifndef __FELIB_ALLOCATE_H__
  13 #define __FELIB_ALLOCATE_H__
  14
  15 #include "typedef.h"
  16
  17
  18 template <class type> inline void Alloc2D (type **&Map, int XSize, int YSize) {
  19   cint Size = XSize*(sizeof(type *)+YSize*sizeof(type));
  20   Map = reinterpret_cast<type **>(new char[Size]);
  21   type *XPointer = reinterpret_cast<type *>(Map+XSize);
  22   for (int x = 0; x < XSize; ++x, XPointer += YSize) Map[x] = XPointer;
  23 }
  24
  25
  26 template <class type> inline void Alloc2D (type **&Map, int XSize, int YSize, const type &Initializer) {
  27   cint Size = XSize*(sizeof(type *)+YSize*sizeof(type));
  28   Map = reinterpret_cast<type **>(new char[Size]);
  29   type* XPointer = reinterpret_cast<type *>(Map+XSize);
  30   for (int x = 0; x < XSize; ++x, XPointer += YSize) {
  31     Map[x] = XPointer;
  32     for (int y = 0; y < YSize; ++y) Map[x][y] = Initializer;
  33   }
  34 }
  35
  36
  37 template <class type> inline void Alloc3D (type ***&Map, int XSize, int YSize, int ZSize) {
  38   cint Size = XSize*(sizeof(type **)+YSize*(sizeof(type *)+ZSize*sizeof(type)));
  39   Map = reinterpret_cast<type ***>(new char[Size]);
  40   type **XPointer = reinterpret_cast<type **>(Map+XSize);
  41   type *YPointer = reinterpret_cast<type *>(XPointer+XSize*YSize);
  42   for (int x = 0; x < XSize; ++x, XPointer += YSize) {
  43     Map[x] = XPointer;
  44     for (int y = 0; y < YSize; ++y, YPointer += ZSize) Map[x][y] = YPointer;
  45   }
  46 }
  47
  48
  49 template <class type> inline void Alloc3D (type ***&Map, int XSize, int YSize, int ZSize, const type &Initializer) {
  50   cint Size = XSize*(sizeof(type **)+YSize*(sizeof(type *)+ZSize*sizeof(type)));
  51   Map = reinterpret_cast<type ***>(new char[Size]);
  52   type **XPointer = reinterpret_cast<type **>(Map+XSize);
  53   type *YPointer = reinterpret_cast<type *>(XPointer+XSize*YSize);
  54   for (int x = 0; x < XSize; ++x, XPointer += YSize) {
  55     Map[x] = XPointer;
  56     for (int y = 0; y < YSize; ++y, YPointer += ZSize) {
  57       Map[x][y] = YPointer;
  58       for (int z = 0; z < ZSize; ++z) Map[x][y][z] = Initializer;
  59     }
  60   }
  61 }
  62
  63
  64 #endif