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  2. RPG400-L
  3. March 2015

Re: AW: RPG String Compare - Bug or not?

One could also argue that RPG is a human-oriented language, whereas C-like
languages are more machine-oriented. That the first element of an array is
numbered 0 makes sense from a machine point of view, but is totally silly
from a human point of view. In that same vein it makes perfect sense to
consider trailing spaces in a character variable irrelevant.

Joep Beckeringh



From:

"D*B" <dieter.bender@xxxxxxxxxxxx>

Subject:

AW: RPG String Compare - Bug or not?

... seems to be a problem of implicit casting rules for comparisations.
Java and many others are dealing with null terminated strings for all
string
representations and are treating all these as one type.
SQL is dealing with multiple types:
- all varying length are from the same type
- each fixed length has it's own type
- SQL is strongly typed and converts for comparisons implicit with some

(undocumented) rules.
RPG has only very little (week) type support and declares all problems
following with this as a feature

D*B

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