From octave-maintainers-request at bevo dot che dot wisc dot edu  Thu Jul 20 10:13:52 2000
Subject: Bug in 2.1.30 and 2.1.31 -- fscanf in "C" compatibility mode
From: Joao Cardoso <jcardoso at inescporto dot pt>
To: "octave-maintainers at bevo dot che dot wisc dot edu"   <octave-maintainers@bevo.che.wisc.edu>
Date: Thu, 20 Jul 2000 16:19:08 +0100


Hi,

The following ilustrate the bug on a two line file:

---po----
One: 1
Two: 2
---------

octave:1> f=fopen("po","r");
octave:2> a=fscanf(f,"One: %d\n")
a = 1
octave:3> ftell(f)
ans = 7
octave:4> a=fscanf(f,"Two: %d\n")
a = 2
octave:5> frewind(f)
ans = 0
octave:6> a=fscanf(f,"One: %d\n","C")
a = 1
octave:7> ftell(f)
ans = -1
octave:8> frewind(f)
ans = 0
octave:9> a=fscanf(f,"One: %d","C")
a = 1
octave:10> ftell(f)
ans = -1

And thus the second file line can't be read.

If the file is read line by line with 'fgetl' and than 'sscanf',
everything is OK.

Joao