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Date: Fri, 22 Oct 2010 07:24:20 +0300
From: Jaakko Heinonen <jh@FreeBSD.org>
To: Benedict Reuschling <bcr@FreeBSD.org>
Message-ID: <20101022042420.GA1389@a91-153-123-205.elisa-laajakaista.fi>
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
	src-committers@freebsd.org
Subject: Re: svn commit: r214148 - head/lib/libc/stdlib
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On 2010-10-21, Benedict Reuschling wrote:
>   Document strtonum()s behavior of setting errno to 0 when no error is found.

strtonum(3) doesn't behave like this. Anyway setting errno to 0 in a
library function would violate the C99 standard.

%%%
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>

int
main()
{

	errno = EDOOFUS;
	if (strtonum("1", 1, 10, NULL) == 0)
		err(1, "failed");

	printf("%d\n", errno);

	return (0);
}
%%%

$ cc test.c
$ ./a.out 
88

-- 
Jaakko