linux-kernel - Re: [PATCH] strings: helper for maximum decimal encoding of an unsigned integer

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Message-ID: <20120914134637.GA8943@umich.edu>
Date:	Fri, 14 Sep 2012 09:46:37 -0400
From:	Jim Rees <rees@...ch.edu>
To:	Jan Engelhardt <jengelh@...i.de>
Cc:	Bernd Petrovitsch <bernd@...rovitsch.priv.at>,
	"J. Bruce Fields" <bfields@...ldses.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] strings: helper for maximum decimal encoding of an
 unsigned integer

Jan Engelhardt wrote:

  >A pure K&R-C version would use a string:
  >#define base10len(i) "\0x1\0x3\0x5\0x8\0x0A\0x0D\0x0F\0x11\0x14"[sizeof(i)]
  >(if I converted them properly into hexadecimal)
  The syntax is \x01\x03\x05...

K&R doesn't have the \x escape, only \0 (octal).
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