Path: csiph.com!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Ike Naar <ike@iceland.freeshell.org>
Newsgroups: comp.lang.c
Subject: Re: Finding the position of a character in a string.
Date: Sun, 29 Jan 2017 21:49:55 -0000 (UTC)
Organization: A noiseless patient Spider
Lines: 8
Message-ID: <slrn3vfso8sov8.jam.ike@iceland.freeshell.org>
References: <432459d7-dc1c-4c69-a197-3767764ddd7a@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Injection-Date: Sun, 29 Jan 2017 21:49:55 -0000 (UTC)
Injection-Info: mx02.eternal-september.org; posting-host="e13b237512493c45f9aa7d1f131d30bd"; logging-data="32474"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+RReIEaEcyC0F4ESyZB7IO"
User-Agent: slrn/0.9.9p1 (NetBSD)
Cancel-Lock: sha1:/eZ6gcUkTs1qu+QgG7LAc9cC768=
Xref: csiph.com comp.lang.c:102732

On 2017-01-29, janus <emekamicro@gmail.com> wrote:
> Is there  a standard function for finding character index Or a better way that what I have below?
>
> 	 char *sop = "+-*/()=,.#<>[];";
> 	 char *chpos = strchr(sop, ch);
> 	 int idx = chpos == NULL ? -1 : chpos - sop;

strspn / strcspn ?