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From: Nick Roberts <nickrob@snap.net.nz>
To: Mark Kettenis <mark.kettenis@xs4all.nl>
Cc: vladimir@codesourcery.com, gdb@sources.redhat.com
Subject: Re: MI failures related to string printing
Date: Fri, 12 Jan 2007 12:11:00 -0000	[thread overview]
Message-ID: <17831.31430.442855.801431@kahikatea.snap.net.nz> (raw)
In-Reply-To: <200701121118.l0CBIh7p011299@brahms.sibelius.xs4all.nl>

 > I think the whole idea of doing string comparisons for C (or C++)
 > "char *" pointers is flawed.  There is no guarantee that a "char *"
 > actually points to a null-terminated as the test shows.  You should
 > not treat "char *" any different from other pointers like "int *", at
 > least not by default.  You could implement a way for the user to
 > specify that a "char *" is actually a pointer to a string instead of a
 > single character.  But otherwise I think the string comparison should
 > only do for languages that have a genuine string type, such as Pascal.

It's unfortunate you didn't express this opinion earlier.  There are no
gauarantees but generally if you are watching a "char *" type it points to
something useful, or you learn something if it doesn't.  Without string
comparison you can't `watch' the contents of a string change.  I think it's
better to focus on such practical issues than pathological cases in the
testsuite.

-- 
Nick                                           http://www.inet.net.nz/~nickrob


  reply	other threads:[~2007-01-12 12:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-12 10:52 Vladimir Prus
2007-01-12 11:22 ` Mark Kettenis
2007-01-12 12:11   ` Nick Roberts [this message]
2007-01-12 12:30   ` Bob Rossi

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