coearray.h

来自「气体热力性质计算程序」· C头文件 代码 · 共 53 行

/*=========================================================================================
   This program is the coefficient array class, the core in the class is a 2-dimensional
pointer. The coefficients used to precise the Cp, and the temperature limit for each data
segment also exists in this class. The 2-dimensional pointer is allocated to a irregular
2-d array, and there is a unsigned int type pointer "_sublen" allocated to a 1-d array giving 
the length of each subarray in the 2-d pointer. The temperaure limit of each segment is also 
restored in a 1-d array, which is allocated from a double type pointer. But what is different
from the "_sublen" is that there is more one element in this array than the number of segments.
This redundant element is designed prohibiting the over access to this array by the respondant
function. 
-----------------------------------------------------------------------------------------*/
#pragma once

#include<iostream>

class coeArray
{
public:
	coeArray(unsigned int len=0);
	coeArray(const coeArray &des);
	~coeArray();

	//copy the values in arrays with memory valid checking and freeing
	//and then allocate the new memory
	virtual inline coeArray &operator=(const coeArray &des);
	
	//allocate the memory for sub array
	virtual inline bool SubAlloc(unsigned int index,unsigned int sublen);
	
	//return the address of the indicated sub array by parameter "index"
	virtual inline double *operator[](unsigned int index);
	
	//give the length of first dimension of the 2-d array
	virtual inline unsigned int Len();

	//give the length of sub array in the 2-d array indicated by "index"
	virtual inline unsigned int SubLen(unsigned int index);

	//give the reference to the temperature limit of the segment indicated
	//by "index"
	virtual inline double &Tl(unsigned int index);

private:
	//copy the values in arrays without memory valid checking and freeing 
	//only allocating new memory
	virtual inline void CopyArray(const coeArray &des);

	double **A;	//data used to precise Cp under 1 atm
	double *_Tl;	//the temperature limit of each data segment
	unsigned int _len;	//the length of the first dimension of the 2-d array
	unsigned int *_sublen;	//allocated to restore the sub array length
};