linux-kernel - Re: [PATCH] ACPI: replace strlen("string") with sizeof("string") -1

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Message-ID: <m2wr1cz571.fsf@igel.home>
Date:	Mon, 06 Aug 2012 12:26:58 +0200
From:	Andreas Schwab <schwab@...ux-m68k.org>
To:	Len Brown <lenb@...nel.org>
Cc:	Alan Stern <stern@...land.harvard.edu>, linux-acpi@...r.kernel.org,
	linux-pm@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
	Len Brown <len.brown@...el.com>,
	Pavel Vasilyev <pavel@...linux.ru>
Subject: Re: [PATCH] ACPI: replace strlen("string") with sizeof("string") -1

Len Brown <lenb@...nel.org> writes:

> ...both give the number of chars in the string
> without the '\0', as strncmp() wants,
> but sizeof() is compile-time.

Does this actually change anything?  The compiler is able to expand
strlen at compile time if the argument is a constant, provided that that
builtin strlen isn't disabled.

Andreas.

-- 
Andreas Schwab, schwab@...ux-m68k.org
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