Convert .txt file to array

[themagicdragon]

I was wondering if anyone can help me - I don't really know what I'm doing with strings, and have been struggling to work this one out on my own.

I have a .txt file consisting of 10 lines of 15 numbers per line (some 1 digit, some 2), with numbers separated by spaces. I want to put these numbers into an array, eg. I want an array

int numbers[10][15];

where numbers[i][j] has the value of the jth number from the ith line of my .txt file.

How can I go about doing this? Please try and keep things fairly basic

Cheers

[MK27]

Read in one line at a time using fgets() and then loop thru it with a simple sscanf:

int data[10][15], i, j;
char line[256];
for(i=0;i<10;i++) {
    fgets(line,256,fd);
    j = 0;
    while(sscanf(line,"%d%*c"),data[i][j++]);
}

The %*c will just chuck a space or other single character -- it may work with out that.

[Tool]

fgets(), then sscanf() i think.

fgets will get the line, sscanf can get numbers from that line.

mk's fast.

[themagicdragon]

int MainCL(void)
{
  int data[10][15],i,j;
  char line[256];
  FILE *file;  
  file = fopen("test.txt", "r"); 
  for ( i=1 ; i<=10 ; i++ )
    {
      fgets(line,256,file);
      j = 0;
      while(sscanf(line,"%d%*c"),data[i][j++]);
    }
  return 0;
}

Thanks for the quick responses.
The above code is the exact code I have tried, but when I try to run this the program just automatically terminates itself (I have tried putting a simple print command at the end to see if it gets that far, but it doesn't make it). Any suggestions?

[hk_mp5kpdw]

Array's are zero based so a 10 element array for example has indexes from 0 to 9. Your loop goes from 1 to 10 which goes past the end of the array.

That, plus the sscanf part is incorrect.

[themagicdragon]

Ah yes, should have spotted the array problem.

But this is the first time I have seen sscanf, how exactly can I correct this part? From what I can make out, the 'data' part should be in the sscanf brackets as well, but I still can't get anything to work

Thanks