Question

This is so stupidly simple but I’m just having issues with it.

A text file has a header,

e.g.,

# Avizo BINARY-LITTLE-ENDIAN 2.1

define Lattice 496 384 470

Parameters {
    AlignTransform {
        slice0000 0 -0 -30 -1,
        slice0001 0 -0 -30 -1,
        slice0002 0 -0 -30 -1,

And I’m trying to read each of these lines using fscanf.

   int i;
   for (  i = 0; i < 10; i++ ) {
     fscanf(fp, "%s\n", buf);  
     printf("%d) %s\n",i,buf);
   }

resulting in this

0) #
1) Avizo
2) BINARY-LITTLE-ENDIAN
3) 2.1
4) define
5) Lattice
6) 496
7) 384
8) 470
9) Parameters

So it’s parsing the whitespace instead of newlines. Not sure what’s happening.

Answer 1

The %s specifier in fscanf reads words, so it stops when reaching a space.

Use fgets to read a whole line.