mem_func.hpp

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00001 /* $Id: mem_func.hpp 17248 2009-08-21 20:21:05Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD 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, version 2.
00006  * OpenTTD 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.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #ifndef MEM_FUNC_HPP
00013 #define MEM_FUNC_HPP
00014 
00015 #include <string.h>
00016 #include "math_func.hpp"
00017 
00025 template <typename T>
00026 static FORCEINLINE void MemCpyT(T *destination, const T *source, size_t num = 1)
00027 {
00028   memcpy(destination, source, num * sizeof(T));
00029 }
00030 
00038 template <typename T>
00039 static FORCEINLINE void MemMoveT(T *destination, const T *source, size_t num = 1)
00040 {
00041   memmove(destination, source, num * sizeof(T));
00042 }
00043 
00051 template <typename T>
00052 static FORCEINLINE void MemSetT(T *ptr, byte value, size_t num = 1)
00053 {
00054   memset(ptr, value, num * sizeof(T));
00055 }
00056 
00065 template <typename T>
00066 static FORCEINLINE int MemCmpT(const T *ptr1, const T *ptr2, size_t num = 1)
00067 {
00068   return memcmp(ptr1, ptr2, num * sizeof(T));
00069 }
00070 
00079 template <typename T>
00080 static FORCEINLINE void MemReverseT(T *ptr1, T *ptr2)
00081 {
00082   assert(ptr1 != NULL && ptr2 != NULL);
00083   assert(ptr1 < ptr2);
00084 
00085   do {
00086     Swap(*ptr1, *ptr2);
00087   } while (++ptr1 < --ptr2);
00088 }
00089 
00096 template <typename T>
00097 static FORCEINLINE void MemReverseT(T *ptr, size_t num)
00098 {
00099   assert(ptr != NULL);
00100 
00101   MemReverseT(ptr, ptr + (num - 1));
00102 }
00103 
00104 #endif /* MEM_FUNC_HPP */

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