array and pointer

[kreop]

goon.dat
[COLOR=red]1.23[/color], 2.34, 3.45
[COLOR=red]1.34[/color], 2.12, 3.56
[COLOR=red]1.44[/color], 4.56, 6.78

double data[34][4];
void read_data()
{
	char file_name[30]="goon.dat";
	int i,j;
	FILE  *fp;
	double X,Y,Z;
	
	fp=fopen(file_name,"r");
	if(fp==NULL){
		printf("Cannot Open File?\n");
		exit(1);
	}
for(i=0;i<34;i++){
	j=0;
	X=data[i][j];
	Y=data[i][j+1];
	Z=data[i][j+2];
	
fscanf(fp,"%lf,%lf,%lf\n", &data[i][j],&data[i][j+1],&data[i][j+2]);	 printf("%f,%f,%f\n",data[i][j],data[i][j+1],data[i][j+2]);
double a[]={data[i][j]};
printf("%f",a[0]);
     }
fclose(fp);	
}

After run the codes, result showed

[COLOR=red]1.23[/color],[COLOR=red] 1.34[/color],[COLOR=red] 1.44[/color]

Why not the result is 1.23.I tried to get each value using pointer or array.

 

[ArkM]

The result of the snipped above is as expected, but you must check end of file condition, for example:

if (fscanf(...) != 3) /* next 3 elements assigned? */
   break;

What's your result? This program prints 4 numbers on every loop (with a slightly strange alignment: no \n in the last fprintf).

Why so exotic:

    j=0;
    X=data[i][j];
    Y=data[i][j+1];
    Z=data[i][j+2];
/* it's exactly: */
    X = data[i][0];
    Y = data[i][1];
    ...

Don't use all-capital var names: as usually (traditionally), it's macros name.