From bug-octave-request  Thu Jul 29 16:32:11 1993
Subject: fscanf behavior
From: hodelas at CONTROLS dot MSFC dot NASA dot GOV (A. Scott Hodel)
To: bug-octave
Date: Thu, 29 Jul 93 15:24:19 CDT

This may be my ignorance rather than a bug.  Here's the m-file:

function [a,b,c,d,stname,inname,outname] = marsyas_in()
%
% load a hybrid linear system in from Marsyas output
%
st_file = fopen('marsyas.st','r')
n = fscanf(st_file,'%d')
disp(['Loading ',num2str(n),' states'])
stname = ' '
for ii=1:n
  stname(ii) = fscanf(st_file,'%s')
endfor
fclose(st_file)

endfunction

------------------------------------
Here's the data:
file marsyas.st:

32
(SUBA) PFTD
(SUBA) MFTD
(SUBA) NFTP
(SUBA) WDFP1
(SUBA) PFPD
(SUBB) NOTPA
(SUBB) WDOP1
(SUBB) POPD
(SUBC) MFTHETADOT
[...]

---------------------------
Here's the octave output:
octave:1>  implicit_str_to_num_ok
implicit_str_to_num_ok = false
octave:2>  marsyas_in
error: failed to convert `(SUBA)' to a numeric type -- default conversion turned
 off

st_file = 3
n = 32
Loading 32 states
stname =
octave:2>  marsyas_in
fscanf: invalid conversion
error: `n' undefined

st_file = 3
octave:2>


For some reason octave is trying to turn a string into a number, Ithink.