Behavior of boolen test of strings

We have some Informix 4gl code which uses character strings in boolean tests, i.e:
if char_variable then
  # something
end if

And the expected result is that when the string has any value, it evaluates to true. This works differently in Aubit 4gl. Apparently this expression is only true in Aubit when the character string can be converted to a number different from 0.
Is this something we just have to live with, and change our programs, or is it a possiblity to change the behaviour in Aubit to work the same way as Informix?


Test program:
main
  define p_tst_var varchar(255)
  let p_tst_var = arg_val(1)

  if p_tst_var then
     display "All is well"
  else
     display "Not so good"
  end if
end main
--


Øyvind Gjerstad
Systemkonsulent


M +47 909 41 485
[email protected]<mailto:[email protected]>

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