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author | skidd13 <skidd13@openttd.org> | 2008-06-14 16:23:08 +0000 |
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committer | skidd13 <skidd13@openttd.org> | 2008-06-14 16:23:08 +0000 |
commit | a8bb6177ee89a25e570963a6344bf605cc051469 (patch) | |
tree | d5b906fe92067ad24f299aa231dd338520d277f1 /src/core/mem_func.hpp | |
parent | e044910d52430d6bb4cee48004369835d136396f (diff) | |
download | openttd-a8bb6177ee89a25e570963a6344bf605cc051469.tar.xz |
(svn r13516) -Codechange: Move MemCpyT to a fitting core header
-Codechange: Split the sorting code from the sortlist to an appropriate header
Diffstat (limited to 'src/core/mem_func.hpp')
-rw-r--r-- | src/core/mem_func.hpp | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/src/core/mem_func.hpp b/src/core/mem_func.hpp new file mode 100644 index 000000000..5a2a6bcb3 --- /dev/null +++ b/src/core/mem_func.hpp @@ -0,0 +1,57 @@ +/* $Id$ */ + +/** @file mem_func.hpp Functions related to memory operations. */ + +#ifndef MEM_FUNC_HPP +#define MEM_FUNC_HPP + +#include <string.h> +#include "math_func.hpp" + +/** + * Type-safe version of memcpy(). + * + * @param destination Pointer to the destination buffer + * @param source Pointer to the source buffer + * @param num number of items to be copied. (!not number of bytes!) + */ +template <typename T> +FORCEINLINE void MemCpyT(T *destination, const T *source, uint num = 1) +{ + memcpy(destination, source, num * sizeof(T)); +} + +/** + * Type safe memory reverse operation. + * Reverse a block of memory in steps given by the + * type of the pointers. + * + * @param ptr1 Start-pointer to the block of memory. + * @param ptr2 End-pointer to the block of memory. + */ +template<typename T> +FORCEINLINE void MemReverseT(T *ptr1, T *ptr2) +{ + assert(ptr1 != NULL && ptr2 != NULL); + assert(ptr1 < ptr2); + + do { + Swap(*ptr1, *ptr2); + } while (++ptr1 < --ptr2); +} + +/** + * Type safe memory reverse operation (overloaded) + * + * @param ptr Pointer to the block of memory. + * @param num The number of items we want to reverse. + */ +template<typename T> +FORCEINLINE void MemReverseT(T *ptr, uint num) +{ + assert(ptr != NULL); + + MemReverseT(ptr, ptr + (num - 1)); +} + +#endif /* MEM_FUNC_HPP */ |