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From: js@cs.tu-berlin.de (Joerg Schilling)
Newsgroups: comp.unix.solaris,comp.unix.bsd.misc,comp.unix.internals
Subject: Re: Solaris 2.6
Date: 9 Dec 1996 16:16:51 GMT
Organization: Technical University of Berlin, Germany
Lines: 58
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Message-ID: <58he1j$145$1@news.cs.tu-berlin.de>
References: <32986299.AC7@mail.esrin.esa.it> <slrn5af88v.199.dave@pc-damir.srce.hr> <588tfe$pf2@arktur.rz.uni-ulm.de> <58ag7g$i0d@tooting.netapp.com>
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Xref: euryale.cc.adfa.oz.au comp.unix.solaris:91895 comp.unix.bsd.misc:1740 comp.unix.internals:11531
In article <58ag7g$i0d@tooting.netapp.com>, Guy Harris <guy@netapp.com> wrote:
>Andreas Borchert <borchert@turing.mathematik.uni-ulm.de> wrote:
>>long does not do the job because of the
>>existence of sometimes larger types named long long. Then you may cast
>>(or assign) it accordingly. You need, of course, an associated %-tag
>>for it.
>
>...and I'm not sure there's a *de facto* standard % tag for "long long
>int", to the same extent that there's somewhat of a *de facto* standard
>"long long int" for getting 64-bit "int"s. Solaris 2.x offers
>"%ll[dux]"; 4.4BSD offers "%q[dux]"; I seem to remember reading that
>Linux, at least at some point, offered some *third* tag.
>
>So much for portability, even to systems that all support "long long
>int"....
Linux supports %lld , but that's not a real solution.
printf("filesize: %ld\n", stat.st_size);
...
printf("filesize: %lld\n", stat.st_size);
Cannot be made portable!
Printf needs a new, more portable interface for printing numbers.
I propose the general form:
%*.*:*.* = %fldwith.signif:size.base Most complex form
or
%*.*:*d Width & size form
or
%:*d Siplest extension
This would allow to make the printf statement above portable
by using:
printf("filesize: %:*d\n", sizeof(stat.st_size), stat.st_size);
This also would allow to print a number to any base e.g.:
printf("%:.9\n", i);
would print 'i' to the base of 9.
Joerg
--
EMail: joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni) If you don't have iso-8859-1
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URL: http://www.fokus.gmd.de/usr/schilling J"org Schilling