Thread: Reading and using numbers from a file

Hi all,

I need to process data from a file with the following format:

Code:

41.877430 0.200000 0.200000 1.000000 1 
42.339146 0.200000 0.200000 0.400000 1 
42.507645 1.000000 1.000000 0.400000 1 
43.607258 0.500000 0.500000 0.200000 1

All I really need is the three last numbers. I need to read them, and process them until the end of the file.

I tried the following program:

Code:

FILE *infile;

int main(void)
{float sim_time, p, q, s,sum;
 int accepted;
   
     infile  = fopen("temp_log", "w");


    while(!feof(infile)) { 
      /* loop through and store the numbers into the array */
      fscanf(infile, "%f %f %f %f %i", &sim_time, &p, &q, &s, &accepted);
        
      sum += complex_function(q,s,accepted);

      }

    printf("The sum is %f \n" ,sum); 

 fclose(infile);
}

But it does not work. In particular, I am not sure how to read the numbers, how to start a new line, and how to know when I reach the end of the file.

Thanks for any ideas.

Tor