Hi Charles,
charles_da...@fws.gov wrote:
w := []
w1 := w[1]
This assignment fails (silently), leaving w1 assigned null.
It turns out that
s := a || w[1] # fails
Fails in the same way that w1 := w[1] fails (no value for that subscript).
While,
s := a || w1 # terminates the program with a runtime error.
Since wl has value null, this is the same as:
s := a || null
and null cannot be converted to a string for the concatenation.
--
Steve Wampler -- swamp...@noao.edu
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