> -----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
> 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.



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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