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From: Brian Gough <bjg@network-theory.co.uk>
To: James Bergstra <bergstrj@iro.umontreal.ca>
Cc: Gerard Jungman <jungman@lanl.gov>, gsl-discuss@sourceware.org
Subject: Re: containers tentative design summary
Date: Fri, 30 Oct 2009 16:54:00 -0000	[thread overview]
Message-ID: <m3y6ms6dcn.wl%bjg@network-theory.co.uk> (raw)
In-Reply-To: <7f1eaee30910291440r58566738l8105bc0d8faf849b@mail.gmail.com>

At Thu, 29 Oct 2009 17:40:30 -0400,
James Bergstra wrote:
> If the purpose is to protect the user from accidentally messing around
> with data then, as Gerard suggests, maybe we shouldn't bother.  This
> is not a battle that we can win in C.  Good naming conventions for
> functions, which indicate the arguments that will be modified, is the
> most that a C library is expected to provide.

The purpose is to make programs safer, rather than provide any hints
for optimisation.  The current system is type-safe and gives a
"discarding const" compiler warning if people try to pass const
objects to functions as non-const arguments - these seem like useful
features.  It's not clear to me what the actual benefit would be if we
only had non-const vectors and matrices.

  reply	other threads:[~2009-10-30 16:54 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-05 10:12 Gerard Jungman
2009-10-05 14:50 ` James Bergstra
2009-10-05 23:00   ` Gerard Jungman
2009-10-05 23:45     ` James Bergstra
2009-10-06 19:59       ` Gerard Jungman
     [not found]     ` <645d17210910060537s762d6323pfd2bec8590ad28e9@mail.gmail.com>
2009-10-06 20:02       ` Gerard Jungman
2009-10-23 21:28     ` Brian Gough
2009-10-27 23:06       ` Gerard Jungman
     [not found]         ` <7f1eaee30910271628h70785125m68e47c7a7b5c25b7@mail.gmail.com>
2009-10-27 23:49           ` Gerard Jungman
2009-10-29 18:06         ` Brian Gough
2009-10-29 20:41           ` Gerard Jungman
2009-10-29 21:40             ` James Bergstra
2009-10-30 16:54               ` Brian Gough [this message]
2009-10-30 16:54             ` Brian Gough
2009-10-05 23:04   ` some general questions Gerard Jungman
2009-10-06 16:21     ` Brian Gough
2009-10-06 20:32       ` Gerard Jungman
2009-10-10 14:45         ` Tuomo Keskitalo
2009-10-24 11:16           ` Brian Gough
2009-10-14 20:00         ` Brian Gough
2009-10-15 18:39           ` Tuomo Keskitalo
2009-11-03 19:44 containers tentative design summary Gerard Jungman
2009-11-09 20:41 ` Brian Gough
2009-11-09 23:06   ` Gerard Jungman
2009-11-14 15:25     ` Brian Gough
2009-11-15  9:13       ` Tuomo Keskitalo
2009-11-15 16:44         ` Jonathan Underwood
2009-11-15 18:41           ` Robert G. Brown
2009-11-16 11:56         ` Brian Gough
2009-11-20  9:37 Justin Lenzo

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