Re: uninitialized data in t-test-alpha.sh

[John Darrington]

On Sat, Dec 09, 2006 at 01:42:15PM -0800, Ben Pfaff wrote:
     I'm seeing the following warning from valgrind on
     t-test-alpha.sh:
     
     ==4900== Conditional jump or move depends on uninitialised value(s)
     ==4900==    at 0x80CF84F: casefilter_variable_missing (casefilter.c:63)

This highlights an issue which has been concerning me for some time.

The line at question says:
  if ( val->f == SYSMIS ) 

which is fine, if the variable to which val belongs is numeric.  But
in this case, it is a string variable (with a width less than sizeof
(flt64) ).

Can string variables ever be SYSMIS? and is it ever valid to compare
them to SYSMIS ? 

J'

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