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Variables of type c have always blanks to fill them up to the desired length. In Concatenate, those blanks are always ignored when concatenating. You can avoid that by using the separeted clause:
concatenate 'Hello' 'World'
into var in character mode separated by space.
In that case you will have a blank beween Hello and World.
Or you just use strings instead of Chars. Note that constants in normal quotes are treated as c-type, whereas constants in back quotes are treated as strings and strings can have trailing blanks:
concatenate `Hello ` `World` "note the backquotes and the space after hello
into var in character mode.
Bluesky
