* Generic type in package
@ 2005-01-21 18:07 Stefan Merwitz
2005-01-21 18:22 ` Ludovic Brenta
2005-01-22 8:32 ` Martin Krischik
0 siblings, 2 replies; 3+ messages in thread
From: Stefan Merwitz @ 2005-01-21 18:07 UTC (permalink / raw)
Hello,
I've seen the following type definition in a package-file (ads):
generic
type T is (<>);
this seems to allow comparing (smaller, greater or equal) of the type T.
But I did not find this type definition ("(<>") in the Ada
documentation. What are the differences to limited private and does this
constrict the usable data types for T?
Thanks in advance,
Stefan
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Generic type in package 2005-01-21 18:07 Generic type in package Stefan Merwitz @ 2005-01-21 18:22 ` Ludovic Brenta 2005-01-22 8:32 ` Martin Krischik 1 sibling, 0 replies; 3+ messages in thread From: Ludovic Brenta @ 2005-01-21 18:22 UTC (permalink / raw) Stefan Merwitz writes: > Hello, > > I've seen the following type definition in a package-file (ads): > > generic > type T is (<>); > > this seems to allow comparing (smaller, greater or equal) of the type > T. But I did not find this type definition ("(<>") in the Ada > documentation. What are the differences to limited private and does > this constrict the usable data types for T? > > > Thanks in advance, > > Stefan It means that T must be a discrete type: either an enumeration, a range, or a modular type. See ARM 12.5.2 and 3.2(12). HTH -- Ludovic Brenta. ^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Generic type in package 2005-01-21 18:07 Generic type in package Stefan Merwitz 2005-01-21 18:22 ` Ludovic Brenta @ 2005-01-22 8:32 ` Martin Krischik 1 sibling, 0 replies; 3+ messages in thread From: Martin Krischik @ 2005-01-22 8:32 UTC (permalink / raw) Stefan Merwitz wrote: > Hello, > > I've seen the following type definition in a package-file (ads): > > generic > type T is (<>); > > this seems to allow comparing (smaller, greater or equal) of the type T. > But I did not find this type definition ("(<>") in the Ada > documentation. What are the differences to limited private and does this > constrict the usable data types for T? No - its the "box" Read: http://en.wikibooks.org/wiki/Programming:Ada:Special:box Martin -- mailto://krischik@users.sourceforge.net http://www.ada.krischik.com ^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2005-01-22 8:32 UTC | newest] Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2005-01-21 18:07 Generic type in package Stefan Merwitz 2005-01-21 18:22 ` Ludovic Brenta 2005-01-22 8:32 ` Martin Krischik
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