finding precision of data in file

[Blaqb0x]

Hi,

Suppose I had a data file with numbers of various precisions in an NxM array

23.0001 33.034 2.00

99 3.92 0

however I did not know this ahead of time.All I know is I have a file with an NxM array with numbers of some precision.

If I wanted to find out

-How many columns and rows there were
-And the finest precision of the whole set. (x10^-4 from the first number)

What would be the best way of doing this?

-Since a 'space' is the delimeter here could I count the number of spaces before the last number and add 1 to that to get the number of columns?

-I suppose to get the number of rows I could
to a get line and increment a variable everytime until I hit the EOF.

thanx,

[redhead]

strtok(), search for the whiutespaces in the lines, that counts the columns..

Or while reading, something like this:

int read = 0;
int a, b, c;
read = fscanf(file_pointer, "%d %d %d\n", &a, &b, &c);
if(read < 3)
   // error happened, or line didnt hold three integers.
else
   // success, we have our line, with three or more columns.