Date: Tue, 24 Jun 2003 06:25:52 -0700 From: David Schultz <das@freebsd.org> To: Andrey Chernov <ache@nagual.pp.ru> Cc: standards@freebsd.org Subject: Re: scanf(3) patch for C99-conformant FP parsing Message-ID: <20030624132552.GA33228@HAL9000.homeunix.com> In-Reply-To: <20030624124233.GA83552@nagual.pp.ru> References: <20030624114418.GA58305@HAL9000.homeunix.com> <20030624124233.GA83552@nagual.pp.ru>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Jun 24, 2003, Andrey Chernov wrote: > On Tue, Jun 24, 2003 at 04:44:18 -0700, David Schultz wrote: > > Outstanding issues: > > - I'm not sure that it's okay to use isdigit(3) and > > friends in sprintf(). The standard seems to imply that > > it would be okay if every digit in the C locale were > > also a digit in all other locales. > > isdigit() always for 0..9 only, isxdigit() is a like, don't know, what > you mean by 'friends'. > > > + } else if (!isalnum(c) && c != '_') > > F.e. isalnum() you should use with care, it may hit national characters. That's what I was worried about. I believe that's okay by the standard as long as isalnum() still accepts *at least* [a-z][A-Z][0-9] in any locale. Is this a valid assumption or do I need to test by hand? > BTW, in all cases calling is*() macros on char may have side effects, you > need to promote argument to (unsigned char) first. Okay, I'll do that. Thanks.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20030624132552.GA33228>