Date: Tue, 2 Jun 2009 01:09:02 +0200 From: Jilles Tjoelker <jilles@stack.nl> To: Gabor Kovesdan <gabor@FreeBSD.org> Cc: freebsd-standards@FreeBSD.org Subject: Re: mbstowcs() contradiction Message-ID: <20090601230902.GA47172@stack.nl> In-Reply-To: <4A244D7A.9040508@FreeBSD.org> References: <4A244D7A.9040508@FreeBSD.org>
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On Mon, Jun 01, 2009 at 11:51:54PM +0200, Gabor Kovesdan wrote: > I've just found a contradiction in the mbstowcs() man page. It says: > "The mbstowcs() function returns ........ or -1 if an invalid multibyte > character was encountered." > It is impossible, because its return value is size_t, which is a signed > type. Looking on the online documentaton, I think it should return > (size_t)-1 on error. I've also looked at the code and I think our > implementation is standard-compliant, but could someone take another > look, please? If someone can acknowledge I'm right, I'll update the man > page. Apart from the fact that size_t is an unsigned type, that is correct. The function returns (size_t)-1 on error. On another note, the XSI extension of allowing a NULL destination pointer to find the length seems to be implemented but is not documented. The EILSEQ errno is also an XSI extension. -- Jilles Tjoelker
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