> -----Original Message-----
> From: tedd [mailto:tedd.sperl...@gmail.com]
> Sent: 25 September 2010 16:02

 
> One can make the argument that the ELSE IF statement first surfaced
> circa 1977 in FORTRAN 77 and the CASE statement came later in
> FORTRAN
> 90 circa 1991.

Being a fully-fledged member of the pedants' society, I can't let that go 
without comment.

Those dates only hold if you stick to FORTRAN. Algol-68 had if-elif-else-fi, 
and I don't believe it was a pioneer in the structure even then (although the 
syntax may have been novel). It also had a case-esac structure. I'd say both 
elseif and case/switch developed in other languages and were adopted into 
FORTRAN long after they were established as bona fide programming constructs.

Cheers!

Mike

 -- 
Mike Ford,
Electronic Information Developer, Libraries and Learning Innovation,  
Leeds Metropolitan University, C507 City Campus, 
Woodhouse Lane, LEEDS,  LS1 3HE,  United Kingdom 
Email: m.f...@leedsmet.ac.uk 
Tel: +44 113 812 4730





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