correctly size fread result (bug #41648) * oct-stream.cc (octave_base_stream::read): When reading to EOF, don't add extra column to the result matrix if the number of elements found is an exact multiple of the number of rows requested. Avoid mixed signed/unsigned comparisons. * io.tst: New tests.

#!/bin/sh
#
# Like mv $1 $2, but if the files are the same, just delete $1.
# Status is 0 if $2 is changed, 1 otherwise.

if test -r $2; then
  if cmp $1 $2 > /dev/null; then
    echo $2 is unchanged
    rm -f $1
  else
    mv -f $1 $2
  fi
else
  mv -f $1 $2
fi