creation of 2D double array from a text file - c

Question

I want to write a program to create a 2D double array from a text file. The contents and format of my file is
0,0.23645,8.457
4.125,7.102,8.102
1.036,0.547,3.2298,
Same number of row and same number of column. Each number is differentiated by one ','. Each line is differentiated by one'\n' character and at the end one comma.
#include <stdio.h>
#include<conio.h>
void main()
{
FILE *myfile
float a,data[10][10];
char ch;
int i,j;
clrscr();
myfile=fopen("E:\\input.txt", "r");
for(i = 0; i<3; i++)
{
for (j = 0 ; j<3; j++)
{
fscanf(myfile,"%f %c",&a,&ch);
printf("%f ",a);
data[i][j]=a;
}
printf("\n");
}
fclose(myfile);
printf("\n");
for(i=0;i<3;i++)
{ for(j=0;j<3;j++)
{ printf("%f ",data[i][j]);
}
printf("\n");
}
getch();
}
It is working, but not for every time. Sometimes it is giving garbage values, zeros or NAN. I don't know why the result of same code gives sometimes correct or sometimes wrong values?
In this code, I have made my number of row/column constant. But if it is unknown then how do I do? So, I have written another code.
#include <stdio.h>
#include<conio.h>
void main()
{
FILE *myfile;
float a,data[10][10];
char ch;
int i,j,line=0,target=0;
int f=getc(myfile);
clrscr();
myfile=fopen("E:\\input.txt", "r");
while (f!= EOF)
{ if(f=='\n')
line++;
f=getc(myfile);
}
//printf("%d",line);
target=++line;
//printf("%d",target);
for(i = 0; i<target; i++)
{
for (j = 0 ; j<target; j++)
{
fscanf(myfile,"%f %c",&a,&ch);
printf("%f ",a);
data[i][j]=a;
}
printf("\n");
}
fclose(myfile);
printf("\n");
for(i=0;i<target;i++)
{ for(j=0;j<target;j++)
{ printf("%f ",data[i][j]);
}
printf("\n");
}
getch();
}
But it is not at all working, everytime is giving wrong values.
Kindly help

Answer 1

It's done with the following code.
#include <stdio.h>
#include<conio.h>
void main()
{
FILE *myfile;
float a,data[10][10];
char ch;
int i=0,j=0,target=-1;
clrscr();
myfile=fopen("E:\\input.txt", "r");
while(1)
{
while(1)
{ fscanf(myfile,"%f %c",&a,&ch);
data[i][j]=a;
j++;
if(ch=='0')
{ target=j;
break;
}
else if(j==target)
break;
}
j=0;
i++;
if(i==target)
break;
}
fclose(myfile);
for(i=0;i<target;i++)
{ for(j=0;j<target;j++)
{ printf("%f ",data[i][j]);
}
printf("\n");
}
getch();
}
removed the EOF, rather using while loop.