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From: "Slava Semushin" <slava.semushin@gmail.com>
To: "ALT Devel discussion list" <devel@lists.altlinux.org>
Subject: Re: [devel] [git update] packages/apt: heads/master
Date: Tue, 18 Dec 2007 14:34:58 +0600
Message-ID: <75e139a00712180034q7e92798blf091948e0473c620@mail.gmail.com> (raw)
In-Reply-To: <20071217194406.A22628E8032@ssh.git.local.altlinux.org>

2007/12/18, Dmitry V. Levin <ldv / altlinux.org>:
> Update of /people/ldv/packages/apt.git
[...]
> +--- a/apt/apt-pkg/algorithms.cc
> ++++ b/apt/apt-pkg/algorithms.cc
[...]
> ++/* Like strcmp, but compares digit sections by number value.
> ++ * E.g.: tar-1.10 > tar-1.9 > tar-1.1a
> ++ * (while strcmp gives tar-1.10 < tar-1.9). */
> ++static int nameCompare(const char* n1, const char* n2)
> ++{
> ++   while(*n1 && *n2) {
> ++      if(isdigit(*n1) && isdigit(*n2)) {
> ++       unsigned long long i1, i2;
> ++       i1 = strtoull(n1, const_cast<char **>(&n1), 10);
> ++       i2 = strtoull(n2, const_cast<char **>(&n2), 10);
> ++       if(i1 != i2)
> ++          return (i1 > i2) ? 1 : -1;
> ++      } else if(*n1 != *n2) {
> ++       return (*n1 > *n2) ? 1 : -1;
> ++      } else {
> ++       n1++;
> ++       n2++;
> ++      }
> ++   }
> ++   return 0;
> ++}
[...]

Почему бы не использовать  strverscmp() для этих целей? Оно, правда,
GNU extenstion, но портабельность, как понимаю, для нас не критична.
Зато она более стандартна, чем самописный nameCompare() и лучше
документирована.


-- 
+ Slava Semushin | slava.semushin @ gmail.com
+ ALT Linux Team | php-coder @ altlinux.ru

       reply	other threads:[~2007-12-18  8:34 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-18  8:34 ` Slava Semushin [this message]
2007-12-18  9:42   ` Alex Myltsev
2007-12-18 10:18     ` Dmitry V. Levin
2007-12-18 10:35       ` Alexey Rusakov
2007-12-18 10:38         ` Dmitry V. Levin
2007-12-18 11:00           ` Alexey Rusakov
2007-12-18 14:04             ` Dmitry V. Levin
2007-12-19  6:17       ` Slava Semushin
2008-03-30  4:28     ` [devel] apt-pkg/algorithms.cc nameCompare Alexey Tourbin

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