From: mockturtle <framefritti@gmail.com>
Subject: Curiosity about different integer types
Date: Sat, 18 Jun 2016 14:26:42 -0700 (PDT)
Date: 2016-06-18T14:26:42-07:00 [thread overview]
Message-ID: <63c033c6-10b5-44fc-8d93-a786392a6058@googlegroups.com> (raw)
Dear all,
few days ago a curiosity came to my mind. Consider this
type Foo is new Integer range 0 .. 115;
type Bar is new Integer range -1000 .. 1000;
My gut feeling is that, despite the fact that they are both derived from Integer, there is no guarantee that the "binary type" underneath them is the same. For example, Foo could be implemented as an 8-bit integer, while Bar could be implemented as a 16-bit integer, or maybe both could be implemented as (say) 32-bit integers.
Am I right? I tried to do some experiments with gcc and both types are implemented with the same binary type, but it could be only for efficiency reasons...
next reply other threads:[~2016-06-18 21:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-18 21:26 mockturtle [this message]
2016-06-18 21:57 ` Curiosity about different integer types Dmitry A. Kazakov
2016-06-18 22:04 ` Björn Lundin
2016-06-18 23:05 ` Jeffrey R. Carter
2016-06-20 11:39 ` mockturtle
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