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58 lines
1.2 KiB
C++
58 lines
1.2 KiB
C++
17 years ago
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/* $Id$ */
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/** @file mem_func.hpp Functions related to memory operations. */
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#ifndef MEM_FUNC_HPP
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#define MEM_FUNC_HPP
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#include <string.h>
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#include "math_func.hpp"
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/**
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* Type-safe version of memcpy().
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*
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* @param destination Pointer to the destination buffer
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* @param source Pointer to the source buffer
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* @param num number of items to be copied. (!not number of bytes!)
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*/
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template <typename T>
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FORCEINLINE void MemCpyT(T *destination, const T *source, uint num = 1)
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{
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memcpy(destination, source, num * sizeof(T));
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}
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/**
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* Type safe memory reverse operation.
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* Reverse a block of memory in steps given by the
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* type of the pointers.
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*
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* @param ptr1 Start-pointer to the block of memory.
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* @param ptr2 End-pointer to the block of memory.
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*/
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template<typename T>
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FORCEINLINE void MemReverseT(T *ptr1, T *ptr2)
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{
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assert(ptr1 != NULL && ptr2 != NULL);
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assert(ptr1 < ptr2);
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do {
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Swap(*ptr1, *ptr2);
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} while (++ptr1 < --ptr2);
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}
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/**
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* Type safe memory reverse operation (overloaded)
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*
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* @param ptr Pointer to the block of memory.
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* @param num The number of items we want to reverse.
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*/
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template<typename T>
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FORCEINLINE void MemReverseT(T *ptr, uint num)
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{
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assert(ptr != NULL);
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MemReverseT(ptr, ptr + (num - 1));
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}
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#endif /* MEM_FUNC_HPP */
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