Noob fopen Array help!!!

Hi guys this is my first post on the BB. I'm a noob in C programming and need some help with fopen. I'm trying to read in 4 lines of textfile data seperated by tabs

Code:

  -5.736  -4.936  -4.136  -3.336  -2.536  -1.736  -0.936  -0.268
     2.6     2.2     1.8     1.4       1     0.6     0.2       0
       0     2.6     2.2     1.8     1.4       1     0.6     0.2
  -439.1   -4.08   -4.08   -4.08   -4.08   -4.08   -4.08   -2.04

and then for each row create a 1D array

Code:

Matrix1={-5.736,  -4.936,  -4.136,  -3.336, -2.536,  -1.736,  -0.936,  -0.268};
Matrix2={2.6,    2.2,     1.8,     1.4,       1,     0.6,     0.2 ,      0};
Matrix3={0 ,    2.6,     2.2,     1.8,     1.4,       1,     0.6 ,    0.2};
B={0, -439.1,   -4.08 ,  -4.08,   -4.08,   -4.08,   -4.08,   -4.08,   -2.04};

notice on the B vector a zero in front. How would I write this code using fopen? If anyone could give me some tips on how to code fopen stuff it would be greatly appreciated.

check this out for getting started. post back any attempts and errors if any! good luck

ps no one will give you complete solutions so please try and put effort into it. after reading the link above give it a good effort! hope to see the results

This is what I've come up.

Code:

      FILE *fin_data;
      fin_data =fopen ("fin_data.txt","r");
      float matrix1[8] = fgets(1,8,fin_data);
      float matrix2[8] = fgets(2,8,fin_data);
      float matrix3[8] = fgets(3,8,fin_data);
      float B[8] = fgets(2,8,fin_data);

but I keep getting

Code:

initializing argument 1 of `char* fgets(char*, int, FILE*)'

I'm to sure how to use fgets. Is the first line after fgets the line number in the textfile?

* oh and yeah. I basically programmed a Successive over Relaxation Numerical Method for non-linear equations and just need a little help on the fopen stuff cause instead of using a textfile I hard coded the arrays.

http://www.cplusplus.com/ref/cstdio/fgets.html
and
http://www.cplusplus.com/ref/cstring/strtok.html

the descriptions on reference websites such as that are very helpful

post back with questions or errors (with code) if need be!

This is what I came up with

Code:

main()
{
      FILE *fin_data;
      char dataline[N];
      char databroken;
      
      fin_data =fopen ("fin_data.txt","r");
           fgets(dataline,100,fin_data);
           puts(dataline);
           printf("%c\n",dataline);
databroken = strtok(dataline," ");
while(databroken !=0)
{
                 printf("%s\n",databroken);;
      }
return(0);
}

I keep getting

Code:

invalid conversion from `char*' to `char'

I'm not sure what that exactly means

Code:

   printf("%c\n",dataline);
   databroken = strtok(dataline," ");
   while ( databroken !=0 )
   {
      printf("%s\n",databroken);;

The data types don't match with what they should be: dataline is not a single character and databroken is not a pointer to char

Code:

main()

That form went out of vogue in 1989. Perhaps a trip through the FAQ would be beneficial.

-- char dataline[N];
where is N defined and what is its value?

-- printf("%c\n",dataline);
your telling printf that you want to print a char(acter) (c) but your passing it a pointer. you probably want dataline[#]

If the file is formatted as such, and you are attempting to scan values from the file, then fscanf may be a good selection.

Thanks for the Help guys. I figured it out. Sweet Slumber.....