Date: Mon, 16 Oct 1995 18:06:04 +0300 (MSK) From: =?KOI8-R?Q?=E1=CE=C4=D2=C5=CA_=FE=C5=D2=CE=CF=D7?= (aka Andrey A. Chernov, Black Mage) <ache@astral.msk.su> To: Bruce Evans <bde@zeta.org.au>, phk@critter.tfs.com Cc: hackers@freefall.freebsd.org, j@uriah.heep.sax.de, kaleb@x.org Subject: Re: A couple problems in FreeBSD 2.1.0-950922-SNAP Message-ID: <WlSJdWmeMT@ache.dialup.demos.ru> In-Reply-To: <199510161408.AAA30026@godzilla.zeta.org.au>; from Bruce Evans at Tue, 17 Oct 1995 00:08:44 %2B1000 References: <199510161408.AAA30026@godzilla.zeta.org.au>
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In message <199510161408.AAA30026@godzilla.zeta.org.au> Bruce Evans
writes:
>>running it on sbin:
>>100% use ctype!!!
>>So my suspection was right.
>This mainly proves that the library modules are even more excessively
>interdependent than at first appearance. I investigated why /sbin/dset
>references ctype:
>1) dset references mkstemp() for some reason. mkstemp() uses only
> isdigit() from among the ctype functions. isdigit() isn't dependent
> on the locale, but it drags in locale stuff anyway.
Yes, mkstemp is one of rare functions which is pure-ASCII.
I think direct test for '0' >= x =< '9' is preferred for pure-ASCII
functions than ctype usage.
>2) dset references vfprintf() which references __dtoa(). __dtoa() doesn't
> reference ny ctype functions, but it is implemented in the same module
> as strtod() which does. strtod() references only isspace() among the
> ctype functions (it uses comparisons with '0' and '9' instead of
> isdigit()).
isspace() is purity killer.
>Almost everything references printf so 2) applies to almost everything.
>Thus we have about 55 * 20K of bloat in [s]bin mainly for the stupid
>reason that a function that is almost never called (strtod()) needs to
>know what a space is.
vfprintf module calls too many functions besides dtoa, they are
fflush, swsetup, sfvwrite, abort, etc. I am not shure that any of them
not calls ctype functions indirectly additionly.
--
Andrey A. Chernov : And I rest so composedly, /Now, in my bed,
ache@astral.msk.su : That any beholder /Might fancy me dead -
FidoNet: 2:5020/230.3 : Might start at beholding me, /Thinking me dead.
RELCOM Team,FreeBSD Team : E.A.Poe From "For Annie" 1849
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