linux-kernel - Re: [PATCH v4 10/12] string: factorize skip_spaces and export it to be generally available

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Date:	Sun, 8 Nov 2009 16:54:11 +0100 (CET)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	André Goddard Rosa <andre.goddard@...il.com>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 10/12] string: factorize skip_spaces and export it to
 be generally available


On Saturday 2009-11-07 16:16, André Goddard Rosa wrote:

> /**
>+ * skip_spaces - Removes leading whitespace from @s.
>+ * @s: The string to be stripped.
>+ *
>+ * Returns a pointer to the first non-whitespace character in @s.
>+ */
>+const char *skip_spaces(const char *str)
>+{
>+	while (isspace(*str))
>+		++str;
>+	return str;
>+}
>+EXPORT_SYMBOL(skip_spaces);
>+

I would make this
	char *skip_spaces(const char *)

just like most of the stdc functions, so that you do not need
ugly casts like this (v) in callers of skip_spaces.

>-	while (*s && isspace(*s))
>-		s++;
>-
>-	return s;
>+	return (char *)skip_spaces(s);
> }
> EXPORT_SYMBOL(strstrip);
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