//Value.cpp
#include
#include
#include
#include
#include
#define MAX_ARRAY_DIM 8
#define ERROR 0
#define OVERFLOW -1
#define UNDERFLOW -2
#define OK 1
typedef int ElemType;
typedef struct
{ ElemType *base;
int dim;
int *bounds;
int *constants;
}Array;
int Locate(Array A,va_list ap,int &off) //Locate() function
{//To get the offset of element in the array A
int ind,i;
off=0;
for(i=0;i { ind=va_arg(ap,int);
if(ind=A.bounds[i]) return OVERFLOW; //Illegal substript
off+=A.constants[i]*ind;
}//end of for
return OK;
}//end of Locate() function
int Assign(Array &A,ElemType e,...) //Assign() function
{
va_list ap;
int result,off=0;
va_start(ap,e);
if((result=Locate(A,ap,off)) *(A.base+off)=e;
va_end(ap);
return OK;
}//end of Assign() function
int Value(Array A,ElemType e,...) //Value() function
{
int result,off=0;
va_list ap;
va_start(ap,e);
if((result=Locate(A,ap,off)) e=*(A.base+off);
va_end(ap);
return e; //that is OK;
}//end of Value() function
int InitArray(Array &A,int dim,...) //InitArray() function
{
int i,elemtotal=1; //Initialize total element of A
va_list ap;
if(dimMAX_ARRAY_DIM) return (ERROR);//if dimention is illegal then return ERROR;
A.dim=dim; //set dimention of array
A.bounds=(int*)malloc(dim*sizeof(int)); //allocate space for array A.bounds
if(!A.bounds) return (OVERFLOW); //failure to allocate
va_start(ap,dim); //ap are the type of va_list
for(i=0;i {A.bounds[i]=va_arg(ap,int);
if(A.bounds[i] elemtotal *=A.bounds[i];
}//end of if
va_end(ap);
A.base=(ElemType*)malloc(elemtotal*sizeof(ElemType));//allocating space to A.base
if(!A.base) return(OVERFLOW);
A.constants=(int*)malloc(dim*sizeof(int)); //allocating space to A.constants
if (!A.constants) return(OVERFLOW);
A.constants[dim-1]=1;
for(i=dim-2;i>=0;--i) //get the const Ci and save into A.constants[i-i],i=1,..,dim
A.constants[i]=A.bounds[i+1]*A.constants[i+1];
return elemtotal;
}//end of InitArray() function
void main() //main() function
{
Array A;
int dim=2,r,i=0; //default dimention is 2;
int off=0,e=50,GetValue; //default Assign values=50;
int bound[MAX_ARRAY_DIM];
int Assbound[MAX_ARRAY_DIM];
int GetVal[MAX_ARRAY_DIM];
printf("Value.cpp\n=========\n\n");
printf("Please input the dimentions of array you want to create: \n");
scanf("%d",&dim);
printf("please assign the length of each dimention: \n\n");
for(i=0;i { printf("Dimention%d.length= ",i+1);
scanf("%d",&bound[i]);
}//end of for
if(r=InitArray(A,dim,bound[0],bound[1],bound[2],bound[3],bound[4],bound[5],bound[6],bound[7]))
{
cout printf("Now begin to Assign!\n");
printf("Assign values = ");
scanf("%d",&e) ;
cout //default: Abound[0]=0;Abound[1]=4;Abound[2]=1;Abound[3]=0;Abound[4]=1;Abound[5]=1;Abound[6]=0;Abound[7]=1;
for(i=0;i { printf("J%d= ",i+1);
scanf("%d",&Assbound[i]);
}//end of for
if(Assign(A,e,Assbound[0],Assbound[1], Assbound[2], Assbound[3], Assbound[4], Assbound[5], Assbound[6], Assbound[7])==OK)
cout else cout
cout cout //default: Abound[0]=0;Abound[1]=4;Abound[2]=1;Abound[3]=0;Abound[4]=1;Abound[5]=1;Abound[6]=0;Abound[7]=1;
for(i=0;i { printf("J%d= ",i+1);
scanf("%d",&GetVal[i]);
}//end of for
r=Value(A,GetValue,GetVal[0],GetVal[1], GetVal[2],GetVal[3],GetVal[4], GetVal[5], GetVal[6],GetVal[7]);
if(r!=OVERFLOW&&r!=UNDERFLOW&&r!=ERROR)
cout else cout }//end of if
getch();
}//end of main() function
