Re: Java and Python have just discovered "record" type finally after 40 years.

["J-P. Rosen" <rosen@adalog.fr>]

Le 13/05/2023 à 18:53, Niklas Holsti a écrit :
>> What about COBOL and LISP?
> 
> 
> As I understand it (but I don't claim to be expert), the early COBOL 
> languages could describe the structure of file records, and of 
> working-storage objects, as nested sequences of components and 
> sub-records, but each such description defined a _single_ "record" 
> object, not a "record" data-type that could have many instances. So if 
> you wanted to have two record objects with the same structure, you had 
> to duplicate the whole record description.
AFAIR, COBOL didn't have types, but you could define a variable LIKE 
another one.

> However, Wikipedia says that the COBOL record structure inspired records 
> for Pascal.
> 
> Early LISP languages did not have record types, AFAIK. But you could of 
> course use lists to program record-like data structures.
Of course, in LISP there is only one structure, for data and programs 
alike: the list!

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J-P. Rosen
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