From: Adam Dyga <adeon@tlen.pl>
To: linux-c-programming@vger.kernel.org
Subject: Re: efficiency in passing a value to a function
Date: Sat, 14 Apr 2007 15:15:37 +0200 [thread overview]
Message-ID: <200704141515.37060.adeon@tlen.pl> (raw)
In-Reply-To: <46190779.3040508@gmail.com>
On Sunday, 8 April 2007 17:17, Shriramana Sharma wrote:
> I agree of course that in case of tiny tidbits of parameters like a few
> int-s, double-s or even std::string-s, there is not much meaning in
> using const ref-s, and it is more intuitive to pass these by value. It
> is only practically useful to pass big classes / struct-s by reference.
Well, std::string should be passed by const reference. Depending on the
implementation, passing std::string by value may involve heap
allocation/deallocation and memory copy operations which are quite costly.
Adam
next prev parent reply other threads:[~2007-04-14 13:15 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-04 17:13 efficiency in passing a value to a function Shriramana Sharma
2007-04-04 18:27 ` Glynn Clements
2007-04-11 21:44 ` Adam Dyga
2007-04-04 18:38 ` Steve Graegert
2007-04-05 12:05 ` Glynn Clements
2007-04-05 13:02 ` Steve Graegert
2007-04-08 15:17 ` Shriramana Sharma
2007-04-13 17:23 ` Glynn Clements
2007-04-14 13:15 ` Adam Dyga [this message]
2007-04-08 14:45 ` Shriramana Sharma
2007-04-13 17:51 ` Glynn Clements
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