reallocate.cpp

来自「1. 系统概述： 图书馆管理系统是运行于Windows系统下的应用软件」· C++ 代码 · 共 16 行

#include<algorithm>		// for std::copy

//类型指定!!
#include"Class/Reader.h"
typedef  CReader ElemType;		

bool reallocate(ElemType* &p, int &size, int addsize)	//重新分配内存,成功true,失败false
{
	size += addsize;		//double the array''s size with each reallocation
	ElemType * temp = new ElemType [size];
	if (temp == NULL)return false;
	std::copy(p, p+(size-addsize), temp);
	delete [] p;		// release original, smaller buffer
	p=temp;		//	reassign p to the newly allocated buffer
	return true;
}