Article View: comp.lang.modula2
Article #4616Re: "for" loops (was Re: C++ vs. Modula2)
From: David Goodenough
Date: Mon, 30 Jan 1989 16:38
Date: Mon, 30 Jan 1989 16:38
34 lines
1091 bytes
1091 bytes
From article <6419@polya.Stanford.EDU>, by crew@Polya.Stanford.EDU (Roger Crew):
> Here's a quiz:
> How would you write the following in C?
>
> VAR a, b, c : Char;
> ...
> FOR c = a TO b DO ... END;
>
> You can even assume that the body of the loop affects neither a nor b.
Probably like this:
char a, b, c;
c = a;
do
{
grunt();
} while (c++ != b);
or like
for (c = a; c != b; c++)
{
grunt();
}
depending on whether the FOR DO END loop iterates once or never when b == a.
The basic idea is to test for equality rather than relation.
--
dg@lakart.UUCP - David Goodenough +---+
IHS | +-+-+
....... !harvard!xait!lakart!dg +-+-+ |
AKA: dg%lakart.uucp@xait.xerox.com +---+
Technical Details
Message-ID:
<406@lakart.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!ima!cfisun!lakart!dgReferences:
<6419@polya.Stanford.EDU>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!ima!cfisun!lakart!dg From: dg@lakart.UUCP (David Goodenough) Newsgroups: comp.lang.modula2 Subject: Re: "for" loops (was Re: C++ vs. Modula2) Message-ID: <406@lakart.UUCP> Date: 30 Jan 89 16:38:04 GMT References: <6419@polya.Stanford.EDU> Organization: Lakart Corporation, Newton, MA Lines: 34