OpenTTD
mem_func.hpp
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1 /* $Id: mem_func.hpp 23640 2011-12-20 17:57:56Z truebrain $ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * 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.
6  * 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.
7  * 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/>.
8  */
9 
12 #ifndef MEM_FUNC_HPP
13 #define MEM_FUNC_HPP
14 
15 #include "math_func.hpp"
16 
24 template <typename T>
25 static inline void MemCpyT(T *destination, const T *source, size_t num = 1)
26 {
27  memcpy(destination, source, num * sizeof(T));
28 }
29 
37 template <typename T>
38 static inline void MemMoveT(T *destination, const T *source, size_t num = 1)
39 {
40  memmove(destination, source, num * sizeof(T));
41 }
42 
50 template <typename T>
51 static inline void MemSetT(T *ptr, byte value, size_t num = 1)
52 {
53  memset(ptr, value, num * sizeof(T));
54 }
55 
64 template <typename T>
65 static inline int MemCmpT(const T *ptr1, const T *ptr2, size_t num = 1)
66 {
67  return memcmp(ptr1, ptr2, num * sizeof(T));
68 }
69 
78 template <typename T>
79 static inline void MemReverseT(T *ptr1, T *ptr2)
80 {
81  assert(ptr1 != NULL && ptr2 != NULL);
82  assert(ptr1 < ptr2);
83 
84  do {
85  Swap(*ptr1, *ptr2);
86  } while (++ptr1 < --ptr2);
87 }
88 
95 template <typename T>
96 static inline void MemReverseT(T *ptr, size_t num)
97 {
98  assert(ptr != NULL);
99 
100  MemReverseT(ptr, ptr + (num - 1));
101 }
102 
103 #endif /* MEM_FUNC_HPP */
static void Swap(T &a, T &b)
Type safe swap operation.
Definition: math_func.hpp:277
static int MemCmpT(const T *ptr1, const T *ptr2, size_t num=1)
Type-safe version of memcmp().
Definition: mem_func.hpp:65
static void MemReverseT(T *ptr1, T *ptr2)
Type safe memory reverse operation.
Definition: mem_func.hpp:79
static void MemMoveT(T *destination, const T *source, size_t num=1)
Type-safe version of memmove().
Definition: mem_func.hpp:38
Integer math functions.
static void MemCpyT(T *destination, const T *source, size_t num=1)
Type-safe version of memcpy().
Definition: mem_func.hpp:25
static void MemSetT(T *ptr, byte value, size_t num=1)
Type-safe version of memset().
Definition: mem_func.hpp:51