[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Expr: Improvement of substr
|
From: |
Paul Eggert |
|
Subject: |
Re: Expr: Improvement of substr |
|
Date: |
Mon, 11 Sep 2006 12:26:00 -0700 |
|
User-agent: |
Gnus/5.1008 (Gnus v5.10.8) Emacs/21.4 (gnu/linux) |
"Sebastian Kreft" <address@hidden> writes:
> Besides the use of int instead of size_t, what is the problem of portability
> with my patch?
Nothing. That was the problem I was referrring to. For example, the
patch you proposed mishandles a string of length 2147483648 on hosts
with 32-bit int, because 'length' wraps around to -2147483648.
> And finally, why do you use mempcpy instead of strncpy?
A minor speed increase. mempcpy need not check for '\0'.