From: Cyril Hrubis <chrubis@suse.cz>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH v2 1/2] lib: Add generic boolean expression parser and eval
Date: Tue, 27 Oct 2020 16:45:29 +0100 [thread overview]
Message-ID: <20201027154529.GA20643@yuki.lan> (raw)
In-Reply-To: <874kmfvg3q.fsf@suse.de>
Hi!
> > +/*
> > + * Note that we avoid modifying the list until the end so that the caller can
> > + * free memory correctly, which is the reason we have a stack for
> > parentesis
>
> If you use a new vector/stack for the output queue instead of an
> intrusive list then this problem should go away. We have an upper bound
> for any token/expr vector which is the length of the input string. So it
> is possible to preallocate an input array instead of using a dynamically
> allocated linked list.
Or we can run the tokenizer twice and first time only record number of
tokens...
--
Cyril Hrubis
chrubis@suse.cz
next prev parent reply other threads:[~2020-10-27 15:45 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-27 11:04 [LTP] [PATCH v2 0/2] Add support for kconfig constraints Cyril Hrubis
2020-10-27 11:04 ` [LTP] [PATCH v2 1/2] lib: Add generic boolean expression parser and eval Cyril Hrubis
2020-10-27 15:33 ` Richard Palethorpe
2020-10-27 15:45 ` Cyril Hrubis [this message]
2020-10-27 11:04 ` [LTP] [PATCH v2 2/2] lib/tst_kconfig: Make use of boolean expression eval Cyril Hrubis
2020-10-28 3:45 ` Xiao Yang
2020-10-29 10:39 ` Cyril Hrubis
2020-11-02 10:17 ` Li Wang
2020-11-02 10:38 ` Cyril Hrubis
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